The Government requires 56 each of NSN 0R-5831-016902235-QE (TDP VER 004), delivered FOB origin, but the part’s design is unstable and major configuration changes are expected to make the current configuration obsolete and unusable. Limited acquisition or repair from the current source is anticipated pending those changes. The Government intends to solicit and negotiate with only one source under FAR 6.302-1, while responsible sources may identify their interest and capability or submit proposals, quotations, or capability statements; this is not a request for competitive proposals. Award is contingent on the offeror, product/service, or manufacturer meeting applicable qualification requirements at time of award, and the Government is not using FAR Part 12 commercial-item procedures, though interested parties may identify commercial-item capability.