This requirement is for 4 each of an NSN item (ref 44035965AK) with delivery FOB origin. The part requires engineering source approval by the design control activity, and only previously approved sources have been solicited. An alternate source must undergo Government-approved qualification, and a new source must submit detailed source approval information as outlined in the NAVSUP WSS brochures. The Government intends to negotiate with only one source under FAR 6.302-1, but all responsible sources may express interest and capability. No budget amount or performance location is specified.