DLA seeks an unrestricted, commercial-item, firm-fixed-price indefinite delivery contract for NSN 4820-01-249-1348, a pressure and temperature relief valve, with an estimated annual demand of 44 each and NAICS 332911 (size standard 750). The contract will have a 3-year base period plus two 1-year options, is subject to the Trade Agreement Act, and uses FOB Origin with inspection/acceptance at destination. Requested delivery is 45 days, with material delivered within 426 days after order and no deliveries before DD Form 1155 issuance; approved sources include Thomas Instrument, Boeing, and Triumph Engine Control Systems. The solicitation is scheduled to be available on November 17, 2026 through DIBBS, and evaluation will combine price, delivery, and performance. Offers must be in English and U.S. dollars, with DIBBS quotations acceptable and offers submitted via scanned SF1449 through DIBBS (preferred) or email to the contracting specialist.