The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure 15 units of a rotary pump, identified by NSN 7R-4320-008186252-DQ and reference number 6821270. This procurement requires engineering source approval due to the flight-critical nature of the item, necessitating that only approved sources may submit proposals, as the technical data and manufacturing knowledge are not readily available to the Government. Interested vendors must provide comprehensive documentation as outlined in the NAVSUP Source Approval Information Brochures to be considered, with a submission deadline of 45 days from the notice publication date. For inquiries, potential bidders can contact Alainna M. Pettit at (215) 697-2606 or via email at ALAINNA.PETTIT@NAVY.MIL.