The Government requires 7 units of NSN 0R-5810-017078552-P8, reference 3392AS612-200, delivered FOB origin. The part’s design is unstable, with engineering, manufacturing, or performance characteristics indicating unmet design objectives, and major changes are contemplated due to low process yield or marginal test/service performance. Those changes are expected to make the current configuration obsolete and unusable, so limited acquisition or repair from the present source is anticipated pending configuration changes. The Government intends to solicit and negotiate with only one source under FAR 6.302-1; responsible sources may identify interest and capability or submit proposals, quotations, or capability statements, though this is not a request for competitive proposals. Based on market research, FAR Part 12 commercial-item policies are not being used, but interested persons may identify to the contracting officer their interest and capability to satisfy the requirement with a commercial item.