This opportunity is for the procurement of 28 units of a flight-critical item (NSN 7R-1660-010198577-VF) with delivery FOB Origin. The government intends to solicit and negotiate with only one source due to a lack of sufficient technical data, and only previously approved sources have been solicited. Any offeror who is not an approved source must submit all required data from the NAVSUP WSS Source Approval Brochure with their proposal, as failure to do so will result in disqualification. Proposals will be considered by the government, but award cannot be delayed for new source approval, and the government retains discretion to proceed with the sole source if fleet support needs require it. No specific budget amount or performance location is stated in the description.