The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 21 units of a specific pump unit, identified by NSN 7H-4320-200029030. The government has determined that it is uneconomical to acquire the data or rights necessary for alternative sources to manufacture or repair this part, emphasizing the importance of this specific item in their operations. Interested vendors are encouraged to submit their capabilities or proposals within 45 days of the notice publication, with all inquiries directed to Alexander Craft at (717) 605-4147 or via email at ALEXANDER.CRAFT@NAVY.MIL.