The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support Mechanicsburg, is soliciting proposals for the procurement of ball valves (NSN: 4820) as part of a critical shipboard system. The contract requires the supply of a complete 1.5-inch non-rated seawater flanged by butt-weld combination hull and backup ball valve, adhering to stringent specifications and quality assurance requirements due to the potential impact on personnel safety and operational integrity. This procurement is classified as a total small business set-aside, emphasizing the importance of compliance with various quality standards and certifications, including First Article Testing and material traceability. Interested vendors must submit their proposals by 4:30 PM EST on May 30, 2025, and can direct inquiries to Madison M. Gray at 717-605-4056 or via email at MADISON.M.GRAY4.CIV@US.NAVY.MIL.