The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the repair and modification of power supply units, identified by part number 28VS175BL and NSN 6130 017063775. The contractor will be responsible for overhauling, upgrading, repairing, testing, and inspecting these units to ensure they meet operational standards, with all necessary facilities, labor, materials, and equipment to be provided by the contractor. This procurement is critical for maintaining the operational readiness of naval equipment, and interested parties should direct inquiries to Jessica Grzywna at 215-697-5095 or via email at JESSICA.GRZYWNA@NAVY.MIL for further details.