This is a sources sought notice for market research to identify potential sources for the new manufacture spare procurement of a FWD rotor spool (NSN 2840-01-516-9165OK, P/N 5128T35G01) for the J85 platform, with an estimated spares requirement of 87 units. No solicitation is currently available, and the government does not intend to award a contract based on this market research; interested parties must register as interested vendors. Potential sources must be capable of providing all labor, materials, facilities, and equipment for manufacturing, inspection, testing, packaging, and shipping, and may also handle supply chain management and nonrecurring engineering costs to become an approved source. The government is interested in responses from all business types, including small, 8(a), service-disabled veteran-owned, HUBZone, and women-owned small businesses, and may consider breaking out the requirement by airframe or setting it aside for small business. Performance of services would be at Tinker AFB, OK 73145, with the NAICS code 336412 and a size standard of 1,500 employees.