This opportunity is for the acquisition of 4 units of a specific part (NSN 7R-6610-015238319-H1) that requires engineering source approval from the Government due to its flight-critical nature. Only previously approved sources have been solicited, and delivery is FOB origin. New sources must submit detailed qualification information as outlined in the NAVSUP WSS Source Approval Brochures, but award cannot be delayed pending approval of a new source. Offers that fail to provide all required source approval data will not be considered for award. No budget amount, submission timeline, or performance location is specified.