The Air Force’s 422nd SCMS is conducting sources-sought market research for a KC-46 proximity switch spares buy (NSN 5930-01-654-7246KT, P/N 8-497-04), with an estimated requirement of 11 new spares and no repair requirement. Performance is associated with Tinker AFB, OK 73145, and potential sources must be capable of new manufacture plus inspection, testing, preservation/packaging, shipping, and related supply-chain/logistics support. This market research will help determine acquisition strategy, including possible small-business set-aside or airframe breakout, and no solicitation is currently available. Potential sources must complete a Source Approval Request package and may need to independently acquire technical data if the Government cannot provide an EDL; official qualification requirements are available via SAM.gov. Interested parties should select the interested-vendors button and provide the requested Part I business information, as oral submissions are not acceptable.