The Air Force is conducting market research through a sources sought notice to identify potential suppliers for the new manufacture of a spare part: a disk and hub fan (NSN 2840011878164PN, P/N 305-026-618-0), with the estimated spares requirement dated 27 Oct 2028. Performance would be at Tinker AFB, Oklahoma. Interested parties must register as interested vendors, as no solicitation is currently available and requests for one will not receive a response. The government is seeking input from all business types, including small, 8(a), SDVOSB, HUBZone, and women-owned small businesses, and may consider breaking the requirement out by airframe. This is not a request for proposal, and no contract award will result from this notice.