Opportunity
SAM #FA853826R0020
C-5 Aircraft Aft Center Cargo Door Repair and Overhaul Services
Buyer
Air Force Security Forces Center (AFSFC)
Posted
May 21, 2026
Respond By
June 05, 2026
Identifier
FA853826R0020
NAICS
336413
The U.S. Air Force, through the Air Force Life Cycle Management Center (AFLCMC) and Air Force Sustainment Center (AFSC), is seeking qualified sources for the repair and overhaul of C-5 'C' model Aft Center Cargo Doors (left and right sides). - Government Buyer: - Air Force Life Cycle Management Center (AFLCMC), C-5 System Program Office (SPO) Engineering Division (AFLCMC/WLSEBA) - Air Force Sustainment Center (AFSC), Robins Air Force Base - OEMs and Vendors: - Lockheed Martin (original manufacturer of C-5 aircraft and cargo doors) - ES3, Inc. (current known source with required tooling) - Products/Services Requested: - Repair and overhaul of C-5 Aft Center Cargo Door, Left-hand Side (NSN: 1560-01-296-6316UC, Part Number: 4F69010-101A) - Repair and overhaul of C-5 Aft Center Cargo Door, Right-hand Side (NSN: 1560-01-297-9975UC, Part Number: 4F69010-102A) - Each door requires teardown, inspection, corrosion control, structural repair, and replacement of parts as needed - Creation of a 3D as-designed model for each door - Development of a simplified overhaul manual - First Unit Repair Verification (FURV) with documentation, CAD comparison, and quality inspection reports - Unique/Notable Requirements: - Full technical data rights are available; no restrictions on repair - One-time repair contract for one left and one right door; no additional quantities expected for at least two years - Contractors must provide all material, support equipment, tools, and calibration/maintenance - Detailed visual inspections, corrosion control, and extensive documentation required - Market research is open to identify additional qualified sources beyond ES3 - Place of Performance/Delivery: - Robins Air Force Base, Georgia (primary delivery and government facility) - Work overseen by AFLCMC/WLSEBA (C-5 SPO Engineering Division)
Description
SYNOPSIS
Request for Proposal
Repair of the C-5 Aft Center Cargo Door Left-hand Side “C Model”, NSN: 1560-01-296-6316UC, Part Number: 4F69010-101A, and C-5 C-Aft Center Cargo Door Right-hand Side “C Model”, NSN: 1560-01-297-9975UC, Part Number: 4F69010-102A
The Government is conducting market research to identify potential sources that possess the expertise, capabilities, facilities, equipment, and experience to repair the C-5 Aft Cargo Center Door – both left and right sides.
NSN 1560012966316 The Left Side door is assigned an RMC/RMSC of R1/G. RMC R1 - Suitable for competitive repair for the second or subsequent time. RMSC G. The Government has rights to the technical data, the data package is complete, and there are no technical data, engineering, tooling or repair restrictions. This is the only RMSC that implies that parts are candidates for full and open competition.
NSN 1560012979975
The Right Side door is assigned an RMC/RMSC of R2/G RMC R2 - Suitable for competitive repair for the first time. RMSC G. The Government has rights to the technical data, the data package is complete, and there are no technical data, engineering, tooling or repair restrictions. This is the only RMSC that implies that parts are candidates for full and open competition.
This requirement is The Aft Center Cargo Doors of the “C” models are split down the centerline and attached to the side doors at the right and left rear of the aircraft, unlike the Aft Cargo Door on the C-5 “A” and “B” models. The primary function of these doors is to allow for the loading and unloading of cargo onto the aircraft. These items will be used on the C-5 aircraft until expected aircraft retirement in 2045.
The agency's minimum needs can only be satisfied by the unique services available from ES3 as
they currently possess the necessary tooling to facilitate the repairs of NSNs, 1560-01-296-
6316UC, and 1560-01-297-9975UC and can meet the urgent delivery needs of the Government.
It is more It has been determined to be uneconomical to reverse engineer the data, qualify a new source, or buy the data and/or data rights.
Please respond by Closing Date 05 JUNE 2026 5:30PM EST
MORE INFORMATION AND INSTRUCTIONS FOR SUBMISSION OF INFORMATION, INTEREST, AND QUESTIONS IS FOUND IN THE ATTACHMENT