The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking qualified sources for the procurement of 14 units of a safety relief valve (NSN 1R-4820-016816226-P8, REF NR 708109-3). This procurement requires engineering source approval due to the flight-critical nature of the item, necessitating that only previously approved sources may submit proposals, as the technical data available does not support full and open competition. Interested parties must provide comprehensive documentation as outlined in the NAVSUP Source Approval Information Brochures, and proposals must be submitted within 45 days of this notice. For further inquiries, contact Jessica L. Harpel at (215) 697-2995 or via email at JESSICA.HARPEL@NAVY.MIL.