This is a limited-source procurement for NSN 0R-2840-017139884-B8, reference 5145T41P02, quantity 1,442 EA, delivered FOB origin. The item is flight critical and/or lacks adequate technical data for full and open competition, and only previously approved Government sources have been solicited. Non-approved sources must submit the source approval information required by the applicable NAVSUP WSS Source Approval Information Brochure with their proposal, and offers lacking the required data will not be considered. The Government intends to negotiate with only one source under FAR 6.302-1, though responsible sources may identify interest and capability or submit proposals, quotations, or capability statements. The acquisition will not use FAR Part 12 commercial-item policies, but interested parties may identify commercial-item interest and capability to the contracting officer.