This opportunity is for the acquisition of 60 units of a specific part (NSN 6K-8145-014230499-LU) that requires engineering source approval from the design control activity, as the item is flight critical. Only previously approved sources have been solicited, and the time required for new source approval typically prevents delaying the award. Delivery is FOB origin, and the location for performance is not specified. No budget amount is provided in the description. Prospective bidders who are not approved sources must submit all required data from the NAVSUP WSS Source Approval Brochure with their proposal to be considered.