C-5 Fluid Regulating Valve Repair

C-5 Fluid Regulating Valve NSN:

4820-00-185-1032 PN: 7720140-101 This requirement is a one-time, firm-fixed price procurement for repair of the C-5 Fluid Regulating Valve for use on United States Air Force (USAF) aircraft, NSN: 4820-00-185-1032, Part Number 7720140-101, quantity seven (7) each. The C-5 fluid regulating valve was designed specifically for the C-5 Galaxy aircraft which is a military transport aircraft. This part is peculiar to and will only be used on the C-5 Aircraft.

The valve, PN 7720140-101, consists of an aluminum alloy housing and cover, a rubber-coated Dacron fabric diaphragm assembly and a mounting bracket. No external controls are required to operate the valve as pressure from the two aircraft liquid nitrogen (LN2) feedlines are fed through the valve, actuating the diaphragm assembly if the pressures are unequal.

The valve senses the differential pressure between the two aircraft liquid nitrogen (LN2) feedline pressures at the fuel tank heat exchanger in the fire suppression system (FSS), then selects and directs the higher pressure to the valve pressure limiter port.

The higher pressure is then applied to the Pressure Limiter Valve which monitors the regulator outlet pressure on both the right and left fuel tank systems to prevent fuel tank over-pressurization The Fluid Regulating Valve should be repaired IAW with Air Force (AF) Technical Manual 13F7-19-3 and the attached drawings. Delivery is 45 days after receipt of (ARO) CARCASS. All assets will be shipped FOB Origin. NO TELEPHONE REQUESTS WILL BE HONORED, and no hard copies will be mailed out.

This proposed contract action is a 100% full and open competition, IAW FAR 6.101(a) and FAR 13.104 . All responsible sources may submit a quotation, which shall be considered by the agency. Additional supporting documentation may be required after receipt of quoatation. Quotes will be evaluated, and award made in accordance with the attached Request for Quote (RFQ). All questions regarding the RFQ must be submitted in writing (by email) to:

caiveon.thomas@us.af.mil with a courtesy copy to Karen.beckford@us.af.mil. NO QUESTIONS MAY BE SUBMITTED BY TELEPHONE. All questions and answers will be uploaded to www.SAM.gov. However, the identity of the potential offeror will not be included. Offerors are encouraged to register to receive notification for RFQ and all amendments / revisions and to check the SAM.gov site prior to submission of quote.

Completed Request for Quotes and applicable documents are due 5:30 PM EST, 5 August 2025. USG has extended Completed Request For Quotes and applicable documents to the due date of 5:30 PM EST, 4 September 2025. USG has extended Completed Request For Quotes and applicable documents to the due date of 5:30 PM EST, 18 September 2025.