The U.S. Air Force is seeking potential sources for the spares procurement of a Torque Limiter Assembly (NSN: 1680-01-148-1999RK, P/N: NF53400-01A) for the B-1 platform. This is a market research effort only, and no solicitation is currently available. The place of performance is Tinker AFB, Oklahoma. Interested parties must be capable of new manufacture, including component procurement, inspection, testing, and shipping, with an estimated requirement of 15 units. All business types, including small and disadvantaged firms, are encouraged to respond.