This sole-source requirement (under FAR 6.302-1) covers NSN 7R-1680-016223099-V2, quantity 70 each, with FOB origin delivery. The part is flight-critical and requires Government source approval; only previously approved sources have been solicited, and new sources must submit qualification data per the NAVSUP WSS Source Approval Brochure, since award cannot be delayed for approval. Proposals will be considered if received within