This is a procurement for 9 units of a Critical Application Item (CAI) that requires delivery FOB Origin. The part requires engineering source approval from the design control activity, and acquisition or repair must come from an existing approved source which retains essential proprietary data. Any alternate source must qualify according to specific procedures approved by the cognizant Government engineering activity. Post-award requests must be submitted to a specified email address with detailed contract information, and quotes or proposals must be emailed to a separate designated address.