The Department of Defense, through the NAVSUP Weapon Systems Support office, is preparing to solicit a long-term contract for the procurement of ramp door valves and related components for the V-22 aircraft. This presolicitation notice indicates a sole source requirement for repair support, specifically targeting Eaton, the original manufacturer, as the only known source capable of fulfilling the necessary repairs due to the government's lack of data to source from alternative suppliers. The procurement is critical for maintaining operational readiness and ensuring the availability of essential aircraft components over a five-year period, with an estimated demand for various types of valves outlined in the attached inventory document. Interested parties may submit capability statements or proposals, but the solicitation will be limited to one responsible source, with RFP details expected to be released on October 16, 2024. For further inquiries, potential contractors can contact Christophe M. Kilcourse at (215) 697-3992 or via email at CHRISTOPHER.KILCOURS@NAVY.MIL.