16--HEAT EXCHANGER,FLUI, IN REPAIR/MODIFICATION OF
DEPT OF DEFENSE.DEPT OF THE NAVY.NAVSUP.NAVSUP WEAPON SYSTEMS SUPPORT.NAVSUP WSS PHILADELPHIA.NAVSUP WEAPON SYSTEMS SUPPORT · Response deadline: Thu, 03 Dec 2026
What the government is buying
The Department of the Navy is soliciting offers for repair or modification services related to a fluid heat exchanger, a component commonly found in naval vessel propulsion, cooling, and mechanical systems. Heat exchangers transfer thermal energy between fluids without mixing them, making them critical to engine cooling, auxiliary systems, and HVAC operations aboard ships. Repair and modification work in this context typically involves inspection, refurbishment, re-tubing, weld repair, pressure testing, and potentially engineering changes to improve performance or extend service life for military platforms.
This procurement is handled by NAVSUP Weapon Systems Support Philadelphia, the division responsible for Navy logistics support and sustainment of weapon systems components. The "16--" prefix in the title indicates this falls under Federal Supply Classification 1660, covering aircraft air conditioning, heating, and pressurizing equipment—though the specific item here is fluid-based thermal management hardware.
Key facts
| Attribute | Value |
|---|---|
| Agency | Department of the Navy, NAVSUP Weapon Systems Support Philadelphia |
| Notice type | Solicitation |
| Solicitation number | N0038324QB194 |
| NAICS | 336413 — Other Aircraft Parts and Auxiliary Equipment Manufacturing |
| Set-aside | None (full and open competition) |
| Response deadline | December 3, 2026, at 4:30 PM EDT |
| Place of performance | see the solicitation |
The NAICS code 336413 covers manufacturers of aircraft parts and auxiliary equipment, which includes heat exchangers and related thermal management components for aerospace and defense applications. Despite the "aircraft" designation, this code is frequently used for cross-platform thermal systems that serve both aviation and marine applications. With no set-aside specified, this competition is open to all responsible sources regardless of size or socioeconomic status.
Who can bid
Any qualified business—small or large—may submit an offer. Because no set-aside applies, the Navy will evaluate all responsive, responsible offerors on a competitive basis.
Given the NAICS 336413 designation, eligible bidders typically include:
- Manufacturers or repair stations with experience in heat exchanger fabrication, overhaul, or modification
- Defense contractors holding relevant Navy or maritime system qualifications
- Specialized thermal management shops with pressure vessel, welding, or Navy-specific certifications
Bidders should anticipate requirements for quality system certifications (such as ISO 9001 or AS9100), Nadcap accreditation for special processes like welding or non-destructive testing, and potentially source inspection by Navy representatives. Past performance on similar defense repair contracts will likely weigh heavily in evaluation. If your firm lacks direct heat exchanger experience but has related thermal or pressure vessel capabilities, see the solicitation for specific qualification thresholds.
How to put together a competitive bid
For an open repair/modification solicitation with no set-aside, focus on technical compliance and price competitiveness:
Technical volume: Detail your repair processes, including disassembly, cleaning, inspection protocols (dye penetrant, radiographic, hydrostatic testing), and modification engineering capabilities. Specify turnaround times and any surge capacity. If you hold Navy-approved repair facility status or pertinent OEM authorizations, highlight these prominently.
Cost realism: The Navy will likely evaluate on lowest price technically acceptable (LPTA) or best valuecriteria. Ensure your pricing accounts for material uncertainty in repair work—condemned parts, core exchanges, and engineering changes can escalate costs. Consider proposing fixed-price with economic price adjustment or carefully scoped firm-fixed-price with clear assumptions.
Compliance check: Verify your SAM.gov registration is active, your CAGE code matches your physical repair facility, and any required DIBBS (Defense Logistics Agency) or NAVSUP WSS vendor registration is current. Review the solicitation for Mil-Spec or drawing requirements referenced in the Navy's technical data package.
Next steps
- Read the full solicitation on SAM.gov by searching solicitation number N0038324QB194 for complete technical requirements, delivery schedules, evaluation criteria, and clause provisions.
- Note the firm deadline: December 3, 2026, at 4:30 PM Eastern Time—late submissions will not be considered.
- File any questions through the SAM.gov Q&A function well before the deadline to allow time for clarifications.
View the official notice on SAM.gov →