This is a sources sought notice for market research to identify potential sources for the spares procurement of a KC-135 aircraft tab/trim part (NSN 1560-01-543-0637FL, P/N 527-14957-1). The requirement is for new manufacture of up to 53 units, including labor, materials, inspection, testing, packaging, and shipping. Performance will be at Tinker AFB, Oklahoma. The government is interested in responses from all business types, including small, 8(a), SDVOSB, HUBZone, and women-owned businesses. No solicitation is available at this time, and this notice does not constitute a contract commitment.