This is a Sources Sought notice for market research regarding the new manufacture of a regulating valve (NSN 4820-01-420-4761-RK, P/N 2920001-101) for the F-15 aircraft. The place of performance for any future contract is specified as Tinker AFB, Oklahoma. The estimated solicitation date is July 2025, with an estimated closing date in August 2025. This is not a solicitation; it is a request for capability statements from potential sources, including all small business types, to help shape the acquisition strategy. Interested vendors must use the "Add Me to Interested Vendors" button to be considered in this market research effort.