This is a sole-source acquisition for a flight-critical part (NSN 7R-1680-015106774-CB) that requires government source approval before contract award, with delivery FOB origin. Only previously approved sources have been solicited, and the government intends to negotiate with one source under FAR 6.302-1, though all responsible sources may submit capability statements. An alternate source must qualify through the design control activity, and the approval process is typically too long to delay award for a new source. If you are not an approved source, you must submit a completed Source Approval Brochure with your proposal or your offer will not be considered. Technical drawings are not available, and interested parties are directed to the NAVSUP WSS business opportunities website for the approval brochure.