This opportunity involves the acquisition of a single unit of a specific part (NSN 6K-8145-016275634-H5) with delivery FOB origin. The part requires engineering source approval from the design control activity to maintain quality, and only approved sources with unique design capability and manufacturing knowledge can supply or repair it. The approved source(s) retain essential technical data or rights that are not economically available to the Government. Any alternate source must qualify through procedures approved by the cognizant Government engineering activity. No budget amount or performance location is specified.