The Department of Defense, through the NAVSUP Weapon Systems Support office, is seeking to procure two rotary pumps under the presolicitation notice for NSN 7R-4320-013289050-HT. The procurement is limited to the Original Equipment Manufacturers (OEMs) Sikorsky and Eaton, as they are the only known sources capable of providing the required spare parts, which are critical for repair support. Interested vendors must submit a Source Approval Request if they are not already approved to manufacture this material, as the government will not delay the procurement process for SAR approvals. Proposals are due within 45 days of the notice publication, with an anticipated award date in December 2024; inquiries can be directed to Michael J. Brown at MICHAEL.J.BROWN43@NAVY.MIL.