This requirement is for a quantity of three units of a specific part (NSN 1R-5340-014774941-QE, ref 74A140412-1004) with delivery FOB origin. The item is flight critical and requires Government source approval prior to contract award, as technical data is insufficient for full and open competition. Only previously approved sources are solicited; new sources must submit the information detailed in the NAVSUP WSS Source Approval Information Brochures, and offers failing to provide required data 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 submit capability statements. Award will be made only if the offeror, product, or manufacturer meets qualification requirements at the time of award.