The Air Force’s 424th SCMS at Tinker AFB, OK, is conducting sources-sought market research for spares procurement of the AN/TRN-41 antenna (ATCALS), NSN 5985-01-461-2669IM, P/N 710001-106, with an estimated requirement of 8 EA. This is not a solicitation; no contract will be awarded from the market research and no funds are available. Potential sources should be capable of new manufacture, including component procurement/manufacture, inspection, testing, preservation/packaging, and shipping, and may also handle supply chain management, logistics planning, forecasting, long-lead procurement, diminishing manufacturing sources/material shortages, and shipping serviceable assets. The government may consider breaking out the requirement by airframe and will use responses to determine competitive or small-business set-aside strategy; all business types are invited under NAICS 336413 with a 1,250-employee size standard. Interested vendors must select the “Add Me to Interested Vendors” button to participate, unit prices would be established at contract award, and nonrecurring engineering costs to become an approved source may apply.