This requirement is for one unit of a flight-critical part (NSN 1R-5365-016836577-QE) with delivery FOB origin. The item requires Government source approval prior to contract award, and only sources previously approved by the Government are being solicited. Alternate sources must qualify through the design control activity’s procedures and must submit all required technical data per the NAVSUP WSS Source Approval Information Brochures; offers that fail to provide this data or proof of prior submission will not be considered. The Government intends to solicit and negotiate with only one source under FAR 6.302-1, but all responsible sources may express interest and capability. No budget amount is specified.