The Department of Defense, specifically the Department of the Navy, is seeking to procure 12 units of a non-powered valve under the presolicitation notice titled "48--VALVE,NDL." This procurement involves the National Stock Number (NSN) 1H-4820-016589593-D4, with delivery required at the Portsmouth Naval Shipyard in Kittery, Maine. The government intends to negotiate with only one source for this contract, as outlined under FAR 6.302-1, although all responsible sources are invited to express their interest and capabilities within 45 days of the notice publication. Interested parties should contact Noelle M. Smith at (717) 605-3992 or via email at noelle.m.smith10.civ@us.navy.mil for further details.