The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of heat exchangers for aircraft, categorized under the NAICS code 336413. This request for quotation (RFQ) is part of a Foreign Military Sales (FMS) spares buy, indicating the importance of these components in supporting military operations and international defense partnerships. Interested vendors should note that the Small Business Administration has determined that a set-aside for small businesses is not applicable for this procurement. For further inquiries, potential bidders can contact Arianna Pillar at 215-697-2198 or via email at ARIANNA.PILLA@NAVY.MIL.