The Department of Defense, through the NAVSUP Weapon Systems Support office, is seeking to procure the repair of two heat exchangers (NSN: 7RE 1660 014926134 GF, P/N: 194222-2-2) on a limited source basis from approved vendors LIMCO-AIREPAIR and HONEYWELL INTERNATIONAL INC. This procurement is critical for maintaining the operational readiness of aircraft systems, specifically in the area of air conditioning, heating, and pressurizing equipment. Interested parties that are not already approved to manufacture this material must submit a Source Approval Request (SAR) within 15 days of this notice, as the procurement will not be delayed for SAR approval. For further inquiries, interested organizations may contact Linda Vong at linda.vong2.civ@us.navy.mil or by phone at 215-697-5936.