This opportunity is for the procurement of 28 units of a specific part (NSN 1R-0000-LLF02O168-GF) with delivery FOB Origin. The item is flight critical, requiring government source approval prior to award, and the government intends to solicit and negotiate with only one source. Only previously approved sources have been solicited, and new sources must submit detailed technical data as outlined in the NAVSUP WSS Source Approval Brochure. Proposals from non-approved sources that fail to provide all required data will not be considered for award. The location for performance of services is not specified, and no budget amount is mentioned.