The U.S. Coast Guard is seeking to procure four specific heat exchangers (NSN 3040 12-382-2887) for ZF reduction gears, with the expectation of a non-competitive sole-source award to the original manufacturer or its authorized distributors. Interested parties must submit capability information within two calendar days of the notice's posting, including a letter from the OEM verifying authorized distributor status and genuine parts supply. The contract will be a firm fixed price, awarded on a lowest price technically acceptable basis, with quotes due by December 16, 2025. All items must be individually preserved and packaged per strict military standards (MIL-STD-2073-1E, etc.), and failure to meet these requirements will result in rejection. No budget amount or performance location is specified in the description.