The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of CORE and RADIATOR components. This is a sole source requirement, indicating that the government does not possess sufficient data to contract with any source other than the current approved supplier, necessitating Government Source Approval prior to award. These components are critical for engine cooling systems in non-aircraft applications, underscoring their importance in maintaining operational readiness. Interested vendors must submit the required documentation as outlined in the NAVSUP WSS Source Approval Brochure, available online, and can direct inquiries to Casey Brown at casey.m.brown20.civ@us.navy.mil or by phone at 215-697-3752.