The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Philadelphia, PA, is soliciting proposals for the procurement of heat exchangers for aircraft air conditioning, heating, and pressurizing equipment. This contract falls under the NAICS code 336413, which pertains to the manufacturing of other aircraft parts and auxiliary equipment, and is critical for maintaining operational efficiency and safety in military aircraft. Interested vendors should note that this solicitation is issued under emergency acquisition flexibilities, and no drawings are available for this request for quotation. For further inquiries, potential bidders can contact Joseph Lewis at 215-737-9462 or via email at JOSEPH.LEWIS@DLA.MIL.