This is a source-controlled, critical application item (NSN 7R-1680-015612501-E7) requiring 11 each, delivered FOB origin, that must be acquired from or repaired by a Government-approved source because adequate technical data, data rights, or manufacturing/repair knowledge are not available for other sources. The item is flight critical and/or lacks technical data adequate for full and open competition, so only previously approved sources have been solicited and Government source approval is required prior to award. Non-approved sources must submit the information required by the applicable NAVSUP WSS Source Approval Information Brochure with their proposal; offers lacking required source approval data will not be considered. The Government intends to solicit and negotiate with only one source under FAR 6.302-1, though responsible sources may identify interest and capability or submit proposals, quotations, or capability statements. This notice is not a request for competitive proposals, and the Government will decide whether to conduct a competitive procurement based on responses received.