The Air Force is conducting market research to identify potential sources for the new manufacture of a valve, regulating, spares procurement for the B-2 platform, with an estimated requirement of four units. This is a sources sought notice, not a solicitation, and interested vendors must register via the "Add Me to Interested Vendors" button to participate. The government is seeking responses from all business types, including small, 8(a), service-disabled veteran-owned, HUBZone, and women-owned small businesses. Performance of the work would be at Tinker AFB, Oklahoma, and potential sources may need to cover supply chain management, testing, packaging, and associated nonrecurring engineering costs. No contract will be awarded based on this market research, and no funding is currently available for the requested information.