The Air Force is seeking spares of an F-16 aircraft oxygen monitor (NSN 1660-01-473-3548) under a non-set-aside, non-commercial acquisition that includes export-control and UID requirements and does not authorize surplus. The total quantity is 10 each across four line items of 1, 2, 3, and 4 each, with required deliveries on or before dates ranging from July 31, 2027 to March 23, 2028. Qualification is limited to approved actual manufacturers that have completed all original-design testing; the listed qualified sources are Lockheed Martin Corporation and Mission Systems Davenport Inc. The Government does not own the data or rights needed to manufacture the item, so interested firms should contact the OEM, and the solicitation will be available electronically via SAM.gov. Anticipated award is 90 days after issuance of the notice, with award potentially based on a combination of price and past performance.