The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Philadelphia, PA, is soliciting bids for the procurement of air heat exchangers. The contract requires the delivery of 21 units, with specific quantities of 11 and 10 units to be delivered within 465 days. These heat exchangers are critical components used in aircraft air conditioning, heating, and pressurizing systems, underscoring their importance in maintaining operational efficiency and safety in military aviation. Interested vendors should reach out to Isabella Perrins at 215-660-7088 or via email at ISABELLA.PERRINS@DLA.MIL for further details, as the solicitation includes provisions for a reverse auction and emphasizes evaluation based on price, delivery timeframe, and past performance.