Common use of Applicable Unscheduled Principal Receipt Period Clause in Contracts

Applicable Unscheduled Principal Receipt Period. Full Unscheduled Partial Unscheduled Servicer Principal Receipts Principal Receipts -------- ------------------ ------------------ Norwest Mortgage, Inc. (Exhibit F-1) Prior Month Prior Month Norwest Mortgage, Inc. (Exhibit F-2) Mid-Month Mid-Month National City Mortgage Company Prior Month Prior Month The Huntington Mortgage Company Prior Month Prior Month Banc One Mortgage Corporation Mid-Month Prior Month First Bank National Association Prior Month Prior Month FT Mortgage Companies Mid-Month Prior Month Suntrust Mortgage, Inc. Prior Month Prior Month Countrywide Home Loans, Inc. Prior Month Prior Month People's Bank Mid-Month Prior Month America First Credit Union Mid-Month Prior Month Bank of Oklahoma, N.A. Mid-Month Prior Month Banknorth Mortgage Company, Inc. Mid-Month Prior Month First Nationwide Mortgage Corporation. Mid-Month Prior Month Xxxxxxx Xxxxx Credit Corporation Mid-Month Prior Month EXHIBIT 1-A-1 [FORM OF FACE OF CLASS 1-A-1 CERTIFICATE] [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] MORTGAGE PASS-THROUGH CERTIFICATE SERIES 1998-19, CLASS 1-A-1 evidencing an interest in a pool of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, which may include loans secured by shares issued by cooperative housing corporations, sold by NORWEST ASSET SECURITIES CORPORATION (Not an interest in or obligation of the Seller) THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER. DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY. Certificate No. Cut-Off Date: July 1, 1998 CUSIP No.: First Distribution Date: August 25, 1998 Percentage Interest evidenced Denomination: $ by this Certificate: % Final Scheduled Maturity Date: August 25, 2013 THIS CERTIFIES THAT ___________________________ is the registered owner of the Percentage Interest evidenced by this Certificate in monthly distributions to the Holders of Class 1-A-1 Certificates with respect to one of two pools comprising the Trust Estate consisting of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, other than the Fixed Retained Yield, if any, with respect thereto, and which may include loans secured by shares issued by cooperative housing corporations (the "Pool I Mortgage Loans") formed by Norwest Asset Securities Corporation (hereinafter called the "Seller", which term includes any successor entity under the Agreement referred to below). The Trust Estate was created pursuant to a Pooling and Servicing Agreement dated as of July 29, 1998 (the "Agreement") among the Seller, Norwest Bank Minnesota, National Association, as master servicer (the "Master Servicer") and First Union National Bank, as trustee (the "Trustee"), a summary of certain of the pertinent provisions of which is set forth hereinafter. To the extent not defined herein, the capitalized terms used herein have the meanings ascribed to such terms in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of the acceptance hereof assents and by which such Holder is bound. Pursuant to the terms of the Agreement, a distribution will be made on the 25th day of each month or, if such 25th day is not a Business Day, the Business Day immediately following (the "Distribution Date"), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last Business Day of the month preceding the month of such distribution, in an amount equal to the product of the Percentage Interest evidenced by this Certificate and the Class 1-A Distribution Amount for the Class 1-A-1 Certificates required to be distributed to Holders of the Class 1-A-1 Certificates on such Distribution Date, subject to adjustment in certain events as specified in the Agreement. Distributions of principal will be allocated to the Class 1-A-1 Certificates in accordance with the provisions of the Agreement. The pass-through rate on the Class 1-A-1 Certificates applicable to each Distribution Date will be 6.500% per annum. The amount of interest which accrues on this Certificate in any month will be subject to reduction with respect to any Group 1 Non-Supported Interest Shortfall and the interest portion of certain Realized Losses allocated to the Class 1-A-1 Certificates, as described in the Agreement. Distributions on this Certificate will be made on behalf of the Trustee either by the Master Servicer or by a Paying Agent appointed by the Master Servicer by check mailed to the address of the Person entitled thereto, as such name and address shall appear on the Certificate Register, unless such Person is entitled to receive payments by wire transfer in immediately available funds in accordance with the Pooling and Servicing Agreement and such Person has notified the Master Servicer pursuant to the Pooling and Servicing Agreement that such payments are to be made by wire transfer of immediately available funds. Notwithstanding the above, the final distribution in reduction of the Principal Balance of this Certificate will be made after due notice of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency specified by the Trustee for that purpose in the notice of final distribution. Reference is hereby made to the further provisions of this Certificate set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. This Certificate constitutes a "regular interest" in a "real estate mortgage investment conduit" as those terms are defined in Section 860G(a)(1) and Section 860D, respectively, of the Internal Revenue Code of 1986, as amended. Unless this Certificate has been countersigned by an authorized officer of the Trustee, by manual signature, this Certificate shall not be entitled to any benefit under the Agreement or be valid for any purpose.

Applicable Unscheduled Principal Receipt Period. Full Unscheduled Partial Unscheduled Servicer Principal Receipts Principal Receipts -------- ------------------ ---------------------------------- ------------------- ------------------ Norwest Mortgage, Inc. (Exhibit F-1) F-1 Prior Month Prior Month Norwest Mortgage, Inc. (Exhibit F-2) F-2 Mid-Month Mid-Month National City The Huntington Mortgage Company Mid-Month Prior Month HomeSide Lending Prior Month Prior Month The Huntington Mortgage Company Prior Month Prior Month Banc One GMAC Mortgage Corporation Mid-Month Prior Month First Bank National Association Prior Month Prior Month FT Mortgage Companies SunTrust Mortgage, Inc. Mid-Month Prior Month Suntrust Mortgage, Inc. National City Mortgage Company Mid-Month Prior Month Bank United Mid-Month Prior Month Countrywide Home Loans, Inc. Prior Month Prior Month People's Bank of Oklahoma, N.A. Mid-Month Prior Month First Union Mortgage Corporation Mid-Month Prior Month America First Credit Union Mid-Month Prior Month Bank of Oklahoma, N.A. Marine Midland Mortgage Mid-Month Prior Month Banknorth Mortgage Company, Inc. Mid-Month Prior Month First Nationwide Mortgage Corporation. Mid-Month Prior Month Corporation Xxxxxxx Xxxxx Credit Corporation Mid-Month Prior Month Hibernia National Bank Mid-Month Prior Month Columbia National, Inc. Mid-Month Prior Month Bank of America, NT & SA Mid-Month Prior Month Home Savings of America Mid-Month Prior Month EXHIBIT 1-A-1 [FORM OF FACE OF CLASS 1-A-1 CERTIFICATE] [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE TRUSTEE SELLER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] MORTGAGE PASS-THROUGH CERTIFICATE SERIES 1998-19, 34 CLASS 1-A-1 evidencing an interest in a pool of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, which may include loans secured by shares issued by cooperative housing corporations, sold by NORWEST ASSET SECURITIES CORPORATION (Not an interest in or obligation of the Seller) THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER. DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY. Certificate No. Cut-Off Date: July December 1, 1998 CUSIP No.: 66937R HS 1 First Distribution Date: August January 25, 1998 1999 Percentage Interest evidenced Denomination: $ by this Certificate: % Final Scheduled Maturity Date: August January 25, 2013 2029 THIS CERTIFIES THAT ___________________________ is the registered owner of the Percentage Interest evidenced by this Certificate in monthly distributions to the Holders of the Class 1-A-1 Certificates with respect to one of two pools comprising the a Trust Estate consisting of a pool of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, other than the Fixed Retained Yield, if any, with respect thereto, and which may include loans secured by shares issued by cooperative housing corporations (the "Pool I Mortgage Loans") ), formed by Norwest Asset Securities Corporation (hereinafter called the "Seller", which term includes any successor entity under the Agreement referred to below). The Trust Estate was created pursuant to a Pooling and Servicing Agreement dated as of July 29December 23, 1998 (the "Agreement") among the Seller, Norwest Bank Minnesota, National Association, as master servicer (the "Master Servicer") and ), First Union National Bank, as trust administrator (the "Trust Administrator"), and the United States Trust Company of New York, as trustee (the "Trustee"), a summary of certain of the pertinent provisions of which is set forth hereinafter. To the extent not defined herein, the capitalized terms used herein have the meanings ascribed to such terms in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of the acceptance hereof assents and by which such Holder is bound. Pursuant to the terms of the Agreement, a distribution will be made on the 25th day of each month or, if such 25th day is not a Business Day, the Business Day immediately following (the "Distribution Date"), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last Business Day of the month preceding the month of such distribution, in an amount equal to the product of the Percentage Interest evidenced by this Certificate and the Class 1-A Distribution Amount for the Class 1-A-1 Certificates required to be distributed to Holders of the Class 1-A-1 Certificates on such Distribution Date, subject to adjustment in certain events as specified in the Agreement. Distributions in reduction of the Principal Balance of certain Classes of Class A Certificates may not commence on the first Distribution Date specified above. Distributions of principal will be allocated to among the Classes of Class 1-A-1 A Certificates in accordance with the provisions of the Agreement. The pass-through rate on the Class 1-A-1 Certificates applicable to each Distribution Date will be 6.5006.350% per annum. The amount of interest which accrues on this Certificate in any month will be subject to reduction with respect to any Group 1 Non-Supported Interest Shortfall and the interest portion of certain Realized Losses allocated to the Class 1-A-1 Certificates, as described in the Agreement. Distributions on this Certificate will be made on behalf of the Trustee either by the Master Servicer or by a Paying Agent appointed by the Master Servicer by check mailed to the address of the Person entitled thereto, as such name and address shall appear on the Certificate Register, unless such Person is entitled to receive payments by wire transfer in immediately available funds in accordance with the Pooling and Servicing Agreement and such Person has notified the Master Servicer pursuant to the Pooling and Servicing Agreement that such payments are to be made by wire transfer of immediately available funds. Notwithstanding the above, the final distribution in reduction of the Principal Balance of this Certificate will be made after due notice of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency specified by the Trustee Trust Administrator for that purpose in the notice of final distribution. Reference is hereby made to the further provisions of this Certificate set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. This Certificate constitutes a "regular interest" in a "real estate mortgage investment conduit" as those terms are defined in Section 860G(a)(1) and Section 860D, respectively, of the Internal Revenue Code of 1986, as amended. Unless this Certificate has been countersigned by an authorized officer of the TrusteeTrust Administrator, by manual signature, this Certificate shall not be entitled to any benefit under the Agreement or be valid for any purpose.

Applicable Unscheduled Principal Receipt Period. Full Unscheduled Partial Unscheduled Servicer Principal Receipts Principal Receipts -------- ------------------ ------------------ Norwest Mortgage, Inc. (Exhibit F-1) F-1 Prior Month Prior Month Norwest Mortgage, Inc. (Exhibit F-2) F-2 Mid-Month Mid-Month National City The Huntington Mortgage Company Mid-Month Prior Month HomeSide Lending Prior Month Prior Month The Huntington Mortgage Company Prior Month Prior Month Banc One GMAC Mortgage Corporation Mid-Month Prior Month First Bank National Association Prior Month Prior Month FT Mortgage Companies SunTrust Mortgage, Inc. Mid-Month Prior Month Suntrust Mortgage, Inc. National City Mortgage Company Mid-Month Prior Month Bank United Mid-Month Prior Month Countrywide Home Loans, Inc. Prior Month Prior Month People's Bank of Oklahoma, N.A. Mid-Month Prior Month First Union Mortgage Corporation Mid-Month Prior Month America First Credit Union Mid-Month Prior Month Bank of Oklahoma, N.A. Marine Midland Mortgage Mid-Month Prior Month Banknorth Mortgage Company, Inc. Mid-Month Prior Month First Nationwide Mortgage Corporation. Mid-Month Prior Month Corporation Xxxxxxx Xxxxx Credit Corporation Mid-Month Prior Month Hibernia National Bank Mid-Month Prior Month Columbia National, Inc. Mid-Month Prior Month Bank of America, NT & SA Mid-Month Prior Month Home Savings of America Mid-Month Prior Month EXHIBIT 1-A-1 [FORM OF FACE OF CLASS 1-A-1 CERTIFICATE] [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE TRUSTEE SELLER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] MORTGAGE PASS-THROUGH CERTIFICATE SERIES 1998-19, 34 CLASS 1-A-1 evidencing an interest in a pool of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, which may include loans secured by shares issued by cooperative housing corporations, sold by NORWEST ASSET SECURITIES CORPORATION (Not an interest in or obligation of the Seller) THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER. DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY. Certificate No. Cut-Off Date: July December 1, 1998 CUSIP No.: 66937R HS 1 First Distribution Date: August January 25, 1998 1999 Percentage Interest evidenced Denomination: $ by this Certificate: % Final Scheduled Maturity Date: August January 25, 2013 2029 THIS CERTIFIES THAT ___________________________ is the registered owner of the Percentage Interest evidenced by this Certificate in monthly distributions to the Holders of the Class 1-A-1 Certificates with respect to one of two pools comprising the a Trust Estate consisting of a pool of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, other than the Fixed Retained Yield, if any, with respect thereto, and which may include loans secured by shares issued by cooperative housing corporations (the "Pool I Mortgage Loans") ), formed by Norwest Asset Securities Corporation (hereinafter called the "Seller", which term includes any successor entity under the Agreement referred to below). The Trust Estate was created pursuant to a Pooling and Servicing Agreement dated as of July 29December 23, 1998 (the "Agreement") among the Seller, Norwest Bank Minnesota, National Association, as master servicer (the "Master Servicer") and ), First Union National Bank, as trust administrator (the "Trust Administrator"), and the United States Trust Company of New York, as trustee (the "Trustee"), a summary of certain of the pertinent provisions of which is set forth hereinafter. To the extent not defined herein, the capitalized terms used herein have the meanings ascribed to such terms in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of the acceptance hereof assents and by which such Holder is bound. Pursuant to the terms of the Agreement, a distribution will be made on the 25th day of each month or, if such 25th day is not a Business Day, the Business Day immediately following (the "Distribution Date"), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last Business Day of the month preceding the month of such distribution, in an amount equal to the product of the Percentage Interest evidenced by this Certificate and the Class 1-A Distribution Amount for the Class 1-A-1 Certificates required to be distributed to Holders of the Class 1-A-1 Certificates on such Distribution Date, subject to adjustment in certain events as specified in the Agreement. Distributions in reduction of the Principal Balance of certain Classes of Class A Certificates may not commence on the first Distribution Date specified above. Distributions of principal will be allocated to among the Classes of Class 1-A-1 A Certificates in accordance with the provisions of the Agreement. The pass-through rate on the Class 1-A-1 Certificates applicable to each Distribution Date will be 6.5006.350% per annum. The amount of interest which accrues on this Certificate in any month will be subject to reduction with respect to any Group 1 Non-Supported Interest Shortfall and the interest portion of certain Realized Losses allocated to the Class 1-A-1 Certificates, as described in the Agreement. Distributions on this Certificate will be made on behalf of the Trustee either by the Master Servicer or by a Paying Agent appointed by the Master Servicer by check mailed to the address of the Person entitled thereto, as such name and address shall appear on the Certificate Register, unless such Person is entitled to receive payments by wire transfer in immediately available funds in accordance with the Pooling and Servicing Agreement and such Person has notified the Master Servicer pursuant to the Pooling and Servicing Agreement that such payments are to be made by wire transfer of immediately available funds. Notwithstanding the above, the final distribution in reduction of the Principal Balance of this Certificate will be made after due notice of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency specified by the Trustee Trust Administrator for that purpose in the notice of final distribution. Reference is hereby made to the further provisions of this Certificate set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. This Certificate constitutes a "regular interest" in a "real estate mortgage investment conduit" as those terms are defined in Section 860G(a)(1) and Section 860D, respectively, of the Internal Revenue Code of 1986, as amended. Unless this Certificate has been countersigned by an authorized officer of the TrusteeTrust Administrator, by manual signature, this Certificate shall not be entitled to any benefit under the Agreement or be valid for any purpose.

Applicable Unscheduled Principal Receipt Period. Full Unscheduled Partial Unscheduled Servicer Principal Receipts Principal Receipts -------- ------------------------------------ ------------------ ------------------ Norwest Mortgage, Inc. (Exhibit F-1) Prior Month Prior Month Norwest Mortgage, Inc. (Exhibit F-2) Mid-Mid Month Mid-Mid Month National City Mortgage Company Prior Month Prior Month The Huntington Mortgage Company Prior Month Prior Month Banc One Mortgage Corporation Mid-Month Prior Month First Bank National Association Prior Month Prior Month FT Mortgage Companies Mid-Month Prior Month Suntrust Mortgage, Inc. Prior Mid Month Prior Month Countrywide Home Loans, Inc. Prior Month Prior Month People's Bank Mid-Banc One Mortgage Corporation Mid Month Prior Month America First Credit Union Mid-FT Mortgage Companies Mid Month Prior Month Bank of Oklahoma, N.A. Mid-Mid Month Prior Month Banknorth The Huntington Mortgage Company, Inc. Mid-Company Mid Month Prior Month First Nationwide Mortgage Corporation. Mid-SunTrust Mortgage, Inc. Prior Month Prior Month Columbia Equities, Ltd. Mid Month Prior Month Home Side Lending, Inc. Prior Month Prior Month Farmers State Bank & Trust Company of Superior Mid Month Prior Month Hibernia National Bank Mid Month Prior Month Xxxxxxx Xxxxx Credit Corporation Mid-Mortgage, Inc. Mid Month Prior Month EXHIBIT 1-A-1 [FORM OF FACE OF CLASS 1-A-1 CERTIFICATE] [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE TRUSTEE SELLER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] MORTGAGE PASS-THROUGH CERTIFICATE SERIES 1998-19, 27 CLASS 1-A-1 evidencing an interest in a pool of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, which may include loans secured by shares issued by cooperative housing corporations, sold by NORWEST ASSET SECURITIES CORPORATION (Not an interest in or obligation of the Seller) THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER. DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING AGREEMENT. ACCORDINGLY, ACCORDINGLY THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY. Certificate No. Cut-Off Date: July October 1, 1998 CUSIP No.: First Distribution Date: August November 25, 1998 Percentage Interest evidenced Denomination: $ by this Certificate: % Final Scheduled Maturity Date: August November 25, 2013 THIS CERTIFIES THAT ___________________________ is the registered owner of the Percentage Interest evidenced by this Certificate in monthly distributions to the Holders of the Class 1-A-1 Certificates with respect to one of two pools comprising the a Trust Estate consisting of a pool of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, other than the Fixed Retained Yield, if any, with respect thereto, and which may include loans secured by shares issued by cooperative housing corporations (the "Pool I Mortgage Loans") ), formed by Norwest Asset Securities Corporation (hereinafter called the "Seller", which term includes any successor entity under the Agreement referred to below). The Trust Estate was created pursuant to a Pooling and Servicing Agreement dated as of July October 29, 1998 (the "Agreement") among the Seller, Norwest Bank Minnesota, National Association, as master servicer (the "Master Servicer") and First Union National Bank, as trustee (the "Trustee"), a summary of certain of the pertinent provisions of which is set forth hereinafter. To the extent not defined herein, the capitalized terms used herein have the meanings ascribed to such terms in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of the acceptance hereof assents and by which such Holder is bound. Pursuant to the terms of the Agreement, a distribution will be made on the 25th day of each month or, if such 25th day is not a Business Day, the Business Day immediately following (the "Distribution Date"), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last Business Day of the month preceding the month of such distribution, in an amount equal to the product of the Percentage Interest evidenced by this Certificate and the Class 1-A Distribution Amount for the Class 1-A-1 Certificates required to be distributed to Holders of the Class 1-A-1 Certificates on such Distribution Date, subject to adjustment in certain events as specified in the Agreement. Distributions in reduction of the Principal Balance of certain Classes of Class A Certificates may not commence on the first Distribution Date specified above. Distributions of principal will be allocated to among the Classes of Class 1-A-1 A Certificates in accordance with the provisions of the Agreement. The pass-through rate on the Class 1-A-1 Certificates applicable to each Distribution Date will be 6.5006.250% per annum. The amount of interest which accrues on this Certificate in any month will be subject to reduction with respect to any Group 1 Non-Supported Interest Shortfall and the interest portion of certain Realized Losses allocated to the Class 1-A-1 Certificates, as described in the Agreement. Distributions on this Certificate will be made on behalf of the Trustee either by the Master Servicer or by a Paying Agent appointed by the Master Servicer by check mailed to the address of the Person entitled thereto, as such name and address shall appear on the Certificate Register, unless such Person is entitled to receive payments by wire transfer in immediately available funds in accordance with the Pooling and Servicing Agreement and such Person has notified the Master Servicer pursuant to the Pooling and Servicing Agreement that such payments are to be made by wire transfer of immediately available funds. Notwithstanding the above, the final distribution in reduction of the Principal Balance of this Certificate will be made after due notice of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency specified by the Trustee for that purpose in the notice of final distribution. Reference is hereby made to the further provisions of this Certificate set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. This Certificate constitutes a "regular interest" in a "real estate mortgage investment conduit" as those terms are defined in Section 860G(a)(1) and Section 860D, respectively, of the Internal Revenue Code of 1986, as amended. Unless this Certificate has been countersigned by an authorized officer of the Trustee, by manual signature, this Certificate shall not be entitled to any benefit under the Agreement or be valid for any purpose.

Applicable Unscheduled Principal Receipt Period. Full Unscheduled Partial Unscheduled Servicer Principal Receipts Principal Receipts -------- ------------------------------------ ------------------ ------------------ Norwest Mortgage, Inc. (Exhibit F-1) Prior Month Prior Month Norwest Mortgage, Inc. (Exhibit F-2) Mid-Month Mid-Month National City Mortgage Company Prior Month Prior Month The Huntington Mortgage Company Prior Month Prior Month Banc One Mortgage Corporation Mid-Month Prior Month First Bank National Association Prior Month Prior Month FT Mortgage Companies Mid-Month Prior Month Suntrust Mortgage, Inc. Prior Month Prior Month Countrywide Home Loans, Inc. Prior Month Prior Month People's Bank Mid-Month Prior Month America First Credit Union Mid-Month Prior Month Bank of Oklahoma, N.A. Mid-Month Prior Month Banknorth Mortgage Company, Inc. Mid-Month Prior Month First Nationwide Mortgage Corporation. Mid-Month Prior Month Xxxxxxx Xxxxx Credit Corporation Mid-Month Prior Month EXHIBIT 1-A-1 [FORM OF FACE OF CLASS 1-A-1 CERTIFICATE] [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] MORTGAGE PASS-THROUGH CERTIFICATE SERIES 19981997-19, 3 CLASS 1-A-1 evidencing an interest in a pool of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, which may include loans secured by shares issued by cooperative housing corporations, sold by NORWEST ASSET SECURITIES CORPORATION (Not an interest in or obligation of the Seller) THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER. DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING AGREEMENT. ACCORDINGLY, ACCORDINGLY THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY. Certificate No. Cut-Off Date: July February 1, 1998 1997 CUSIP No.: First Distribution Date: August March 25, 1998 1997 Percentage Interest evidenced Denomination: $ by this Certificate: % Final Scheduled Maturity Date: August 25, 2013 THIS CERTIFIES THAT ___________________________ -------------------------- is the registered owner of the Percentage Interest evidenced by this Certificate in monthly distributions to the Holders of Class 1-A-1 Certificates with respect to one of two pools comprising the a Trust Estate consisting of a pool of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, other than the Fixed Retained Yield, if any, with respect thereto, and which may include loans secured by shares issued by cooperative housing corporations (the "Pool I Mortgage Loans") ), formed by Norwest Asset Securities Corporation (hereinafter called the "Seller", which term includes any successor entity under the Agreement referred to below). The Trust Estate was created pursuant to a Pooling and Servicing Agreement dated as of July 29February 26, 1998 1997 (the "Agreement") among the Seller, Norwest Bank Minnesota, National Association, as master servicer (the "Master Servicer") ), and First Union National BankBank of North Carolina, as trustee (the "Trustee"), a summary of certain of the pertinent provisions of which is set forth hereinafter. To the extent not defined herein, the capitalized terms used herein have the meanings ascribed to such terms in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of the acceptance hereof assents and by which such Holder is bound. Pursuant to the terms of the Agreement, a distribution will be made on the 25th day of each month or, if such 25th day is not a Business Day, the Business Day immediately following (the "Distribution Date"), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last Business Day of the month preceding the month of such distribution, in an amount equal to the product of the Percentage Interest evidenced by this Certificate and the Class 1-A Subclass Distribution Amount for the Class 1-A-1 Certificates required to be distributed to Holders of the Class 1-A-1 Certificates on such Distribution Date, subject to adjustment in certain events as specified in the Agreement. Distributions in reduction of the principal balance of certain Subclasses of Class A Certificates may not commence on the first Distribution Date specified above. Distributions of principal will be allocated to among the Subclasses of Class 1-A-1 A Certificates in accordance with the provisions of the Agreement. The pass-through rate on the Class 1-A-1 Certificates applicable to each Distribution Date will be 6.5007.25% per annum. The amount of interest which accrues on this Certificate in any month will be subject to reduction with respect to any Group 1 Non-Supported Interest Shortfall and the interest portion of certain Realized Losses allocated to the Class 1-A-1 Certificates, as described in the Agreement. Distributions on this Certificate will be made on behalf of the Trustee either by the Master Servicer or by a Paying Agent appointed by the Master Servicer by check mailed to the address of the Person entitled thereto, as such name and address shall appear on the Certificate Register, unless such Person is entitled to receive payments by wire transfer in immediately available funds in accordance with the Pooling and Servicing Agreement and such Person has notified the Master Servicer pursuant to the Pooling and Servicing Agreement that such payments are to be made by wire transfer of immediately available funds. Notwithstanding the above, the final distribution in reduction of the Principal Balance principal balance of this Certificate will be made after due notice of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency specified by the Trustee for that purpose in the notice of final distribution. Reference is hereby made to the further provisions of this Certificate set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. This Certificate constitutes a "regular interest" in a "real estate mortgage investment conduit" as those terms are defined in Section 860G(a)(1) and Section 860D, respectively, of the Internal Revenue Code of 1986, as amended. Unless this Certificate has been countersigned by an authorized officer of the Trustee, Trustee by manual signature, this Certificate shall not be entitled to any benefit under the Agreement or be valid for any purpose.

Applicable Unscheduled Principal Receipt Period. Full Unscheduled Partial Unscheduled Servicer Principal Receipts Principal Receipts -------- ------------------ ------------------ ------------------- Norwest Mortgage, Inc. (Exhibit F-1) Prior Month Prior Month Norwest Mortgage, Inc. (Exhibit F-2) Mid-Month Mid-Month National City Citicorp Mortgage Company Inc. Prior Month Prior Month The Huntington Mortgage Company Prior Month Prior Month Banc One Mortgage Corporation Mid-Month Prior Month First Bank National Association Prior Month Prior Month FT Mortgage Companies Mid-Month Prior Month Suntrust Mortgage, Inc. Prior Month Prior Month Countrywide Home Loans, Inc. Prior Month Prior Month People's Bank Mid-Month Prior Month America First Credit Union Mid-Month Prior Month Bank of Oklahoma, N.A. Mid-Month Prior Month Banknorth Mortgage Company, Inc. Mid-Month Prior Month First Nationwide Mortgage Corporation. Mid-Month Prior Month Xxxxxxx Xxxxx Credit Corporation Mid-Month Prior Month EXHIBIT 1-A-1 [FORM OF FACE OF CLASS 1-A-1 CERTIFICATE] [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] MORTGAGE PASS-THROUGH CERTIFICATE SERIES 19981997-19, 16 CLASS 1-A-1 evidencing an interest in a pool of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, which may include loans secured by shares issued by cooperative housing corporations, sold by NORWEST ASSET SECURITIES CORPORATION (Not an interest in or obligation of the Seller) THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER. DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING AGREEMENT. ACCORDINGLY, ACCORDINGLY THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY. Certificate No. Cut-Off Date: July September 1, 1998 1997 CUSIP No.: First Distribution Date: August 25October 27, 1998 1997 Percentage Interest evidenced Denomination: $ by this Certificate: % Final Scheduled Maturity Date: August 25, 2013 THIS CERTIFIES THAT ___________________________ --------------------------- is the registered owner of the Percentage Interest evidenced by this Certificate in monthly distributions to the Holders of Class 1-A-1 Certificates with respect to one of two pools comprising the a Trust Estate consisting of a pool of fixed interest rate, conventional, monthly pay, fully amortizing, first lien, one- to four-family residential mortgage loans, other than the Fixed Retained Yield, if any, with respect thereto, and which may include loans secured by shares issued by cooperative housing corporations (the "Pool I Mortgage Loans") ), formed by Norwest Asset Securities Corporation (hereinafter called the "Seller", which term includes any successor entity under the Agreement referred to below). The Trust Estate was created pursuant to a Pooling and Servicing Agreement Agreement, dated as of July September 29, 1998 1997 (the "Agreement") ), among the Seller, Norwest Bank Minnesota, National Association, as master servicer (the "Master Servicer") and First Union National Bank, as trustee (the "Trustee"), a summary of certain of the pertinent provisions of which is set forth hereinafter. To the extent not defined herein, the capitalized terms used herein have the meanings ascribed to such terms in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of the acceptance hereof assents and by which such Holder is bound. Pursuant to the terms of the Agreement, a distribution will be made on the 25th day of each month or, if such 25th day is not a Business Day, the Business Day immediately following (the "Distribution Date"), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last Business Day of the month preceding the month of such distribution, in an amount equal to the product of the Percentage Interest evidenced by this Certificate and the Class 1-A Subclass Distribution Amount for the Class 1-A-1 Certificates required to be distributed to Holders of the Class 1-A-1 Certificates on such Distribution Date, subject to adjustment in certain events as specified in the Agreement. Distributions in reduction of the principal balance of certain Subclasses of Class A Certificates may not commence on the first Distribution Date specified above. Distributions of principal will be allocated to among the Subclasses of Class 1-A-1 A Certificates in accordance with the provisions of the Agreement. The pass-through rate on the Class 1-A-1 Certificates applicable to each Distribution Date will be 6.5006.75% per annum. The amount of interest which accrues on this Certificate in any month will be subject to reduction with respect to any Group 1 Non-Supported Interest Shortfall and the interest portion of certain Realized Losses allocated to the Class 1-A-1 Certificates, as described in the Agreement. Distributions on this Certificate will be made on behalf of the Trustee either by the Master Servicer or by a Paying Agent appointed by the Master Servicer by check mailed to the address of the Person entitled thereto, as such name and address shall appear on the Certificate Register, unless such Person is entitled to receive payments by wire transfer in immediately available funds in accordance with the Pooling and Servicing Agreement and such Person has notified the Master Servicer pursuant to the Pooling and Servicing Agreement that such payments are to be made by wire transfer of immediately available funds. Notwithstanding the above, the final distribution in reduction of the Principal Balance principal balance of this Certificate will be made after due notice of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency specified by the Trustee for that purpose in the notice of final distribution. Reference is hereby made to the further provisions of this Certificate set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. This Certificate constitutes a "regular interest" in a "real estate mortgage investment conduit" as those terms are defined in Section 860G(a)(1) and Section 860D, respectively, of the Internal Revenue Code of 1986, as amended. Unless this Certificate has been countersigned by an authorized officer of the Trustee, by manual signature, this Certificate shall not be entitled to any benefit under the Agreement or be valid for any purpose.