The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 25 units of the heat exchanger, air (NSN 7R-1660-015126523-QE, REF NR 1001986-2). This procurement requires engineering source approval due to the flight-critical nature of the item, necessitating that only approved sources can provide the part to ensure quality and compliance with government standards. Interested vendors must submit their capability statements and any required documentation for source approval by the deadline, with the solicitation expected to be issued on January 6, 2025, and responses due by February 6, 2025. For further inquiries, interested parties can contact Arianna G. Pilla at (215) 697-2198 or via email at ARIANNA.PILLA@NAVY.MIL.