This opportunity is for the repair of a flight-critical part (NSN 1R-4730-014638870-CL, quantity 7) with delivery FOB origin. The government lacks sufficient data to purchase from any source other than the currently approved one, and new sources require government approval before award. Only previously approved sources have been solicited, and the approval timeline for new sources cannot delay the award. Proposals from unapproved sources must include all data required by the NAVSUP WSS Source Approval Brochure or they 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 submit capability statements for consideration.