The Department of Defense, specifically the Department of the Navy, is seeking suppliers for the procurement of two stop-check valves under the presolicitation notice titled "48--VALVE, STOP-CHECK." The requirement includes National Stock Number (NSN) 7H-4820-015728210-X4, with a total quantity of two units to be delivered to the Norfolk Naval Shipyard in Portsmouth, VA. These valves are critical components in various naval applications, and the government has confirmed that the technical data package is complete, allowing for full and open competition among interested parties. For further inquiries, potential bidders can contact Danny L. Oneal at (717) 605-4954 or via email at DANNY.L.ONEAL1@NAVY.MIL. This opportunity is set aside for small businesses, and interested parties are encouraged to express their capabilities within 15 days of this notice.