The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support MECH, is seeking to procure 10 units of a differential gauge (NSN 1H-6685-014782017-X5) as part of a presolicitation notice. The procurement is for supplies that the Government intends to solicit and negotiate with only one source due to the lack of available data or rights for alternative sourcing, making it uneconomical to reverse engineer the part. These gauges are critical for measuring and controlling pressure, temperature, and humidity, which are essential functions in various military applications. Interested parties may contact Jason A. Piechowicz at (717) 605-3515 or via email at JASON.PIECHOWICZ@NAVY.MIL for further details, with proposals due within 45 days of the notice publication.