This opportunity is for the acquisition of 95 units of a specific part (NSN 0Q-5307-016486392-CL) that requires engineering source approval from the design control activity to maintain quality. The part is flight critical, and only previously approved sources have been solicited, as the technical data is not adequate for full and open competition. If you are not an approved source, you must submit detailed information from the NAVSUP WSS Source Approval Brochure with your proposal, or your offer will not be considered. Delivery is FOB Origin, and the Government intends to negotiate with only one source under FAR 6.302-1, though all responsible sources may submit capability statements. Proposals will be considered if received within 45 days after publication of this synopsis.