The Air Force is conducting market research through a sources sought notice for the new manufacture of a linear direct valve (NSN 4810008648673HS, P/N 3-43905-1) used on the T-38 platform, with an estimated spares requirement of 19 units (range 5-29). This is a new spares buy only, with no repair requirement, and interested sources must be capable of furnishing labor, materials, facilities, and equipment for manufacturing, inspection, testing, packaging, and shipping. Performance would be at Tinker AFB, Oklahoma (73145). The government is seeking interest from all business types, including small, 8(a), SDVOSB, HUBZone, and women-owned small businesses, to determine whether the effort can be competitive or set aside for small business. No solicitation is available at this time, and interested parties must register using the “Add Me to Interested Vendors” button.