The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking contractors for the repair and modification of hydraulic drive units. This procurement focuses on aircraft hydraulic, vacuum, and de-icing system components, which are critical for the operational readiness and safety of naval aircraft. Interested parties should reach out to Elise M. Anzini at the provided contact information for further details, as this presolicitation notice indicates the beginning of the procurement process, although specific deadlines and funding amounts have not been disclosed.