This is a sources sought notice for market research on the spares procurement of an electrical control box (NSN 1660-01-143-3525, P/N 783421-1-1) for the B-1B aircraft. The government is seeking interest from all businesses, including small and socio-economic categories, to determine if the effort can be competitive or set aside for small business. There is no solicitation available at this time; interested parties must register as interested vendors to participate in the market research. The selected source must be capable of new manufacture, including component procurement, inspection, testing, packaging, and shipping, with an estimated spares requirement of 12 units. Performance is located at Tinker AFB, Oklahoma.