This is a sources sought notice for market research to identify potential suppliers for the spares procurement of a fire extinguisher platform (NSN 1680-01-285-0595JY, P/N 899416-2) for KC-135 aircraft. The performance location is Tinker AFB, Oklahoma. There is no solicitation available at this time, and interested vendors must register using the “Add Me to Interested Vendors” button. The government is seeking input from all business types, including small and disadvantaged firms, and may consider breaking the requirement out by airframe. The associated NAICS code is 336413 with a size standard of 1,250 employees.