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) under a federal contract. The procurement involves the supply of specialized ball valves that are critical for shipboard systems, where the use of incorrect or defective materials could lead to severe consequences, including personnel injury or loss of life. Interested vendors must adhere to stringent quality assurance and testing requirements, including First Article Testing, and are required to submit their proposals by the specified deadline. For further inquiries, potential bidders can contact Sylvia Sentz at 717-605-1234 or via email at SYLVIA.SENTZ@NAVY.MIL.