The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting quotes for the procurement of an air heat exchanger, identified by NSN 7RH 1660 014648900, with a quantity of one unit required. This solicitation emphasizes the necessity for government source approval prior to award, indicating that potential suppliers must provide detailed information as outlined in the NAVSUP WSS Source Approval Brochure, which is accessible online. The heat exchanger is critical for aircraft air conditioning, heating, and pressurizing systems, underscoring its importance in maintaining operational readiness. Interested vendors should submit their proposals via email to Joshua J. Seltzer at joshua.j.seltzer.civ@us.navy.mil by the specified due date, and can reach him at 215-697-2849 for further inquiries.