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VENDOR PAYMENT

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Welcome to the Vendor Payment Information page.  NASA is committed to expedient and accurate payment of invoices.  On this page you will find information about invoice payment, tips to avoid delayed payments and answers to questions you may have about the payment of your invoice.   

Any questions or inquiries should be addressed to the NSSC Customer Contact Center.

Call: 1-877-677-2123 (1-877-NSSC123)

E-mail: nssc-contactcenter@nasa.gov

Fax: 1-866-779-6772 (1-866-779-NSSC)


Unclassified cost vouchers are to be submitted through Wide Area Workflow (WAWF) and not submitted hardcopy.

WAWF Help Desk Information: 

Call:  866-618-5988 or 801-605-7095;

E-mail:  disa.ogden.esd.mbx.cscassig@mail.mil.
This information is to be used by vendors for login and access issues for WAWF.

Please see E-Invoicing Web Page 
Under Vendor Support: WAWF Vendor Document Creation!  Thank you!

Wide Area Workflow (WAWF) is not to be used for the submission of fee vouchers.

All non-cost type invoices are to be submitted in one of the following ways:

  • via hardcopy paper to:

Mailing address:  NSSC - FMD Accounts Payable
                                Bldg. 1111, Jerry Hlass Road
                                Stennis Space Center, MS 39529

  • via e-mail to:

 E-mail address:    NSSC-AccountsPayable@nasa.gov

  • via fax number:

1-866-209-5415

AP Invoice Fax Transmittal Coversheet

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