This is a new spares requirement for NSN 7R-1660-015303496-FZ, quantity 40 EA, with delivery FOB Origin. The part requires engineering source approval and is flight critical, meaning only previously approved sources have been solicited, and award cannot be delayed for new source approval. If you are not an approved source, you must submit detailed information from the NAVSUP WSS Source Approval Brochure with your proposal, or your offer will not be considered. The government intends to solicit and negotiate with only one source under FAR 6.302-1, but all responsible sources may submit proposals or capability statements. Proposals must be received within 45 days of this synopsis's publication to be considered.