This opportunity is for the procurement of 31 Valve Assembly, Envi spares (with a range of 8-47) and one Production Surge Plan lot, used on the KC-135 aircraft to regulate air pressure. Performance is required at Tinker AFB, Oklahoma, with delivery for the main line item due by February 10, 2028. The sole qualified source is Honeywell International Inc., and the government does not own the data rights, so interested firms must contact the OEM. The acquisition is not set aside for small business, and surplus is not authorized. No specific budget amount is provided in the description.