The requirement is for 16 EA of NSN 7R-1680-015256163-V2, TDP VER 001, delivered FOB Origin. It is a flight-critical part requiring engineering source approval by the design control activity, and only previously Government-approved sources have been solicited. New sources must qualify through NAVSUP WSS source approval procedures and submit the required data with their offer; offers lacking required Source Approval Brochure data or proof of prior submission will not be considered. Because new-source approval normally cannot be completed in time to delay award, approval status is critical; the Government intends to solicit and negotiate with only one source under FAR 6.302-1, though responsible sources may identify interest and capability, and award requires meeting qualification requirements at time of award. FAR Part 12 commercial-item procedures are not being used, and supporting specifications/standardized documents are available via ASSIST-Online or DODSSP in Philadelphia, PA.