IAW FAR 9.2 posting of the attached new buy qualification requirements (QRs) give notice to the public of said new buy document. This means a company must go through a source approval process. The qualification document is MQR-1 Please login to download the QR. If you are having problems downloading the document, please contact FBO.gov help desk. No phone request will be taken. This is NOT a request for proposal (RFP). The approximate issue/response date is N/A. NSN 4820-01-175-1901NZ NOUN Valve Assembly P/N 4057681 Application: F100 Engine