This is a Sources Sought notice for market research to identify potential suppliers for the spares procurement of a DUCT, FAN, AIRCRAFT G component (NSN: 2840-01-387-2657NZ, P/N: 4084856) for the F100 platform. The place of performance is Tinker AFB, Oklahoma, and the applicable NAICS code is 336412 with a 1,500-employee size standard. Potential sources must be capable of new manufacture, including labor, materials, inspection, testing, packaging, and shipping, and may also handle supply chain management and nonrecurring engineering costs. The estimated spares requirement is 9 units, with unit prices to be established at contract award. No solicitation is currently available, and no funds are allocated for this market research effort.