The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support MECH, is seeking to procure 25 units of a power supply, UPS, and other replacement parts under the presolicitation notice. The procurement is for a specific National Stock Number (NSN 3H-6130-016495972) and is subject to stringent sourcing requirements, as the government does not possess the necessary data or rights to acquire or repair the part from alternative sources. This acquisition is critical for maintaining operational readiness, and interested parties are encouraged to express their interest and capabilities within 45 days of the notice, with the understanding that the government intends to negotiate with only one source. For further inquiries, interested vendors can contact Kristina Alexander at (717) 605-6055 or via email at KRISTINA.ALEXANDER@NAVY.MIL.