This opportunity is for the acquisition of 28 units of a specific part (NSN 6K-8145-013574414-SY), with delivery required FOB Origin. The part requires engineering source approval from the design control activity to maintain quality, and must be acquired from an approved source due to unique design capability and data rights. The approved source retains technical data and manufacturing knowledge that is not economically available to the Government. Any alternate source must qualify in accordance with the design control activity's procedures, which require approval by the cognizant Government engineering activity. No budget amount or performance location is specified.