The requirement is for acquisition of spare anti-icing valve assemblies used on F110 engines to direct heated air to prevent ice buildup. The contract line has a minimum quantity of 151, a best estimated quantity of 605, and a maximum of 908 units, with delivery of 605 units due by 31 Mar 2028 to Tinker AFB, OK. This acquisition is not set aside, and source-control restrictions apply: the only qualified sources are GE and Meggitt North Hollywood, with no technical data available to support alternate sourcing. Interested responsible sources may submit proposals, though foreign-owned firms should check restrictions; award is expected approximately 90 days after notice issuance.