Bid guide
How to bid on Heat Exchanger repair/modification for the DEPT of Defense
What the agency is buying and why it matters
The Department of Defense needs 11 heat exchangers, part number NSN 7R-1660-011046489-H1, for repair or modification. These are flight-critical parts, meaning they are essential for aircraft safety and performance.
The agency is seeking firms to provide these specific heat exchangers, with delivery FOB origin. While the government has previously approved sources, other firms can submit their capabilities and source-approval data for consideration. This is an opportunity for specialized equipment repair or manufacturing companies to potentially become an approved vendor for critical defense components.
Key dates and what happens at the deadline
This request for information was published on August 07, 2026. The deadline for submissions is September 21, 2026, at 12:00 AM ET.
Proposals received within 45 days of the publication date will be considered. If an award is issued under an existing Basic Ordering Agreement (BOA), proposals received within 30 days will be considered. It is important to submit all required information by the deadline to ensure your proposal is evaluated.
Who this opportunity suits
This opportunity is best suited for firms with expertise in the repair or modification of flight-critical equipment, specifically heat exchangers. Companies that have previously been approved by the government for similar items are specifically targeted.
However, firms that are not yet approved but have strong capabilities in manufacturing or repairing complex, flight-critical components may also be suitable. You will need to demonstrate your ability to meet stringent engineering and quality standards for this type of equipment.
How to respond to this solicitation
To access the full details of this opportunity, click “View original source” on the portal. If the first click takes you to the portal’s homepage, click it again to go directly to the bid.
You may need a free account on the portal to view all documents, though this is not always required. If you are not an approved source, you must submit detailed information as outlined in one of the NAVSUP Weapon Systems Support (NAVSUP WSS) Source Approval Information Brochures, along with your proposal. If your source approval request is already being evaluated, include a copy of your cover letter.
Practical tips for a competitive response
Carefully review the NAVSUP WSS Source Approval Information Brochures to understand all requirements for new source approval. Ensure every piece of requested data is included in your submission, as incomplete offers will not be considered.
Highlight your firm's unique design capabilities, engineering skills, and manufacturing or repair knowledge relevant to flight-critical components. Emphasize any existing data rights or technical data you possess that are essential to maintaining the quality of such parts. Clearly demonstrate how your firm meets or exceeds the qualification requirements for this specific item.
See the live bid — deadline, agency details, and how to respond
Dates and requirements can change via addenda; always verify on the bid page and at the original source before responding.
View this bid on BiddingSimpleThis guide was prepared by BiddingSimple from the solicitation’s public posting. It is not official guidance from DEPT of the Navy; the original posting controls.

