This is a sole-source procurement for one unit of NSN 1R-5325-016916340-V2, a flight-critical item, with delivery FOB origin. The technical data is unavailable, so the government requires source approval prior to award and will only solicit previously approved sources. New sources must submit all required data per the NAVSUP WSS Source Approval Brochure, or their offers will not be considered. The government intends to negotiate with only one source under FAR 6.302-1, but all responsible parties may express interest or submit capability statements. The item is subject to trade agreements if applicable clauses are included in the solicitation.