The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support Mechanicsburg, is soliciting bids for the procurement of relief valves, classified under the NAICS code 332919 for Other Metal Valve and Pipe Fitting Manufacturing. The procurement involves an increase in quantity from 9 to 21 units, with specific requirements for inspection, acceptance, and compliance with various quality assurance standards, including the Buy American Act and Federal Acquisition Supply Chain Security Act. Interested vendors should note that all contractual documents will be considered issued upon transmission, and they must submit their quotes by the specified deadline, ensuring pricing remains valid for 60 days post-quotation. For further inquiries, potential bidders can contact Catherine Hughes at 717-605-4323 or via email at CATHERINE.HUGHES@NAVY.MIL.