This is a sources sought notice for market research to identify potential sources for the new manufacture of a regulating valve (NSN 4820-00-860-4396, P/N 114500-111) for the B-52, with performance at Tinker AFB, Oklahoma. There is no solicitation available at this time, and requests for a solicitation will not receive a response. Interested parties must complete a Source Approval Request (SAR) package to qualify, and technical data may not be provided by the government. The government is interested in all business types, including small businesses, and may consider breaking out the requirement by airframe. Responses to this notice are for planning purposes only, and no funds are available for the requested information.