This opportunity is for the acquisition of 5 units of a specific part (NSN 6K-8145-013574413-SY) that requires engineering source approval from the design control activity, as it is flight critical. Only previously approved sources have been solicited, and delivery is FOB origin. New sources must submit detailed technical data as outlined in the NAVSUP WSS Source Approval Information Brochures with their proposal, as the time required for approval of a new source cannot delay award. Offers failing to provide all required source approval data will not be considered for award. The contract is 100% set aside for small businesses (SBSA).