This opportunity is for the acquisition of two units of a flight-critical part (NSN 7R-5895-017210636-P8) that requires Government source approval prior to award, with delivery FOB origin. Only previously approved sources are being solicited, as the part requires unique engineering knowledge and data rights held by the approved source that are not economically available to the Government. New sources must submit detailed qualification information per the NAVSUP WSS Source Approval Brochure, but approval timelines typically prevent delaying award for new source approval. 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. No budget amount is specified, and the location for performance of services is not mentioned.