This opportunity is for the procurement of a single flight-critical, commercial-off-the-shelf item (NSN 1R-1680-LLF02N788-P8) that requires Government source approval prior to award, with delivery FOB Origin. Only previously approved sources have been solicited, and new sources must submit detailed technical data per the NAVSUP WSS Source Approval Brochure with their proposal to be considered. The Government intends to solicit from only one source under FAR 6.302-1, but all responsible parties may submit capability statements or proposals for consideration. Proposals will be considered if received within 45 days of this notice's publication (or 30 days if under an existing Basic Ordering Agreement). No specific budget amount or performance location is specified in the description.