The Department of Defense, specifically the Department of the Air Force, is seeking sources for the procurement of six Brake Heat Stack Assemblies, NSN 1630-01-616-6552LE, intended for use on B-1 aircraft at Hill Air Force Base in Utah. These assemblies are critical wear-items that provide the necessary stopping force for the aircraft's brakes and must be replaced regularly. The government plans to issue a sole source solicitation to Meggitt Aircraft Braking Systems Corporation, the original equipment manufacturer, as they possess the exclusive data required for production. Interested parties are encouraged to submit a capability statement, proposal, or quotation, and should specify their business size and ownership status. For further inquiries, respondents may contact William Lee at william.lee.66@us.af.mil or by phone at 801-586-3201.