This opportunity is for the acquisition of 3 units of a specific part (NSN 7R-1680-014873406-V2) that is flight-critical and requires Government source approval prior to contract award. Only previously approved sources have been solicited, and the time required to approve a new source is too long to delay the award. If you are not an approved source, you must submit detailed technical data as outlined in the NAVSUP WSS Source Approval Brochure with your proposal, or your offer will not be considered. The delivery term is FOB Origin, and the Government intends to negotiate with only one source under FAR 6.302-1, though all responsible sources may submit proposals. Proposals will be considered if received within 45 days (or 30 days under an existing BOA) from the publication date of this synopsis.