The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support MECH, is seeking to procure a valve assembly identified by NSN 7H-4820-011015772. The procurement involves a quantity of four units, with delivery terms set to FOB Origin, and the government intends to negotiate with only one source due to the lack of available data rights for this part, making it uneconomical to pursue alternative sources or reverse engineering. This valve assembly is critical for military applications, and interested parties are encouraged to express their interest and capability to fulfill the requirement within 45 days of this notice, with contact directed to Robert Langel at (717) 605-3353 or via email at ROBERT.H.LANGEL.CIV@US.NAVY.MIL.