This opportunity is for the acquisition of a flight-critical part (NSN 7R-1730-014618330-QE) that requires Government source approval prior to contract award, as technical data is unavailable for competitive solicitation. Delivery is FOB Origin for a quantity of 2 units. Only previously approved sources have been solicited, and new source approval cannot be accommodated within the required timeline. Prospective bidders who are not approved sources must submit all required data from the NAVSUP WSS Source Approval Brochure with their proposal, or their offer will not be considered. The government intends to negotiate with only one source under FAR 6.302-1, but all responsible parties may submit capability statements for consideration.