The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 31 units of the Valve Assembly, Anti (NSN 7R-2995-014546717-QE, REF NR 814269-3). This procurement requires engineering source approval due to the flight-critical nature of the item, necessitating that only approved sources may submit proposals, as the technical data necessary for full and open competition is not adequately available. Interested parties must provide detailed documentation regarding their qualifications and experience in producing similar items, as well as comply with the source approval process outlined by the Government. Proposals must be submitted within 45 days of this notice, and inquiries can be directed to Gina P. Sassane at (215) 697-2198 or via email at GINA.P.SASSANE.CIV@US.NAVY.MIL.