The Department of Defense, through the Defense Logistics Agency (DLA) Aviation in Richmond, Virginia, is initiating a presolicitation for a sole source procurement of aircraft components, specifically targeting 207 National Stock Numbers (NSNs) associated with various weapon systems and operational platforms. The primary objective is to issue a Request for Proposal (RFP) to the Original Equipment Manufacturer (OEM), Parker Hannifin Corporation, which has been identified as the approved source for these components, ensuring that the items meet the necessary military standards and operational requirements. This procurement is critical for maintaining military readiness and logistics, as it encompasses essential parts such as filters, valves, and transmitters, which are vital for various military applications. Interested parties, including non-OEM sources, must submit their letters of interest and any relevant documentation by January 8, 2025, to the contracting officer, Kenya Allamby, at kenya.allamby@dla.mil, with the anticipated closing date for the solicitation set for April 9, 2025.