This is a sources sought notice for market research to identify potential sources for the spares procurement of an indicator temperature item (NSN 6685-01-311-5064RK, P/N 78000-11158-1) used on B-52/C-135 platforms, with an estimated new manufacture requirement of 9 each and no repair requirement. Performance will be at Tinker AFB, OK, and potential sources must be capable of providing all labor, materials, facilities, and equipment for manufacturing, inspection, testing, packaging, and shipping, as well as possibly supply chain management and nonrecurring engineering costs. The government is interested in responses from all business types, including small, 8(a), SDVOSB, HUBZone, and women-owned small businesses, and may consider breaking the requirement out by airframe or making it a small business set-aside. No solicitation is available at this time, and no contract award or funding is committed based on this market research; interested parties must register via the "Add Me to Interested Vendors" button to participate. The associated NAICS code is 336413 with a size standard of 1,250 employees.