The government intends to procure spare Injector Assemblies (NSN 2915-01-550-3637NZ, P/N 4081806) for the F-100 engine, with line-item quantities including 48 each plus smaller lots, delivered at 48 per month beginning on or before 30 September 2027 to destination DIS002. The acquisition is a limited-source effort under FAR 6.302, with qualified sources RTX Corporation and Woodward FST Inc.; non-approved sources may submit but only qualified sources will be considered for award. It is not a small business set-aside, and the government does not intend to use commercial-item procedures. Export control requirements apply, and UID requirements apply if unit price exceeds $5,000; First Article Contractor Testing is required for approved sources other than OEM Pratt & Whitney. Award is anticipated 60 days after issuance of the notice, and the solicitation will be available electronically on Sam.gov.