This is a sources sought synopsis for market research on the spares procurement of a Transmission, Mechan Platform for the B-1B aircraft, requiring new manufacture of the item. The specific part is NSN 1680011427637RK, P/N NF53300-04A, with an estimated spares requirement of 46 each (minimum 11, maximum 69). No solicitation is currently available, and no contract will be awarded based on this market research; interested sources must register as interested vendors. All business types are encouraged to respond, and the government may consider breaking the requirement out by airframe. Performance would be at Tinker AFB, OK 73145.