This federal contract award is for the procurement of 4 units of NSN 1560008551843 DUCT, HEAT EXCHANGER. The contract was awarded by the Defense Logistics Agency (DLA) Aviation to the prime contractor S3 Aerodefense LLC, a small business limited liability company based in Glendale, Wisconsin. The contract has a firm fixed price of $35,212.00 and a performance period ending on March 16, 2027. The original solicitation was issued as a Request for Quote (RFQ) and did not have a set-aside designation, allowing all responsible sources to submit quotes. The duct heat exchanger is a source-controlled item with an approved manufacturer, and the contract falls under the Product Service Code (PSC) 15-P for Aerospace Craft and Structural Components, indicating it is likely for military aircraft applications. S3 Aerodefense LLC is an experienced aerospace and defense contractor that has secured numerous prime contracts and subcontracts with various federal agencies, including the Defense Logistics Agency, U.S. Coast Guard, Department of the Navy, and Air Force.