This opportunity is for the procurement of a flight-critical part requiring engineering source approval by the design control activity, with delivery FOB origin. Only previously approved sources have been solicited, as the government intends to negotiate with a single source under FAR 6.302-1. Any new source must qualify through the design control activity's procedures, and the time required for approval typically prevents delaying award. Prospective bidders not already approved must submit the source approval information detailed in the NAVSUP WSS brochures with their offer. No specific budget or performance location is provided, and no drawings are available.