The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support MECH, is seeking to procure centrifugal pumps under the presolicitation notice titled "43--PUMP,CENTRIFUGAL." The procurement involves a quantity of four units of NSN 7H-4320-011997925, with delivery terms set to FOB Origin, and the government intends to negotiate with only one source due to the unavailability of data rights for alternative procurement. These pumps are critical components in various military applications, and the government has determined that it is uneconomical to reverse engineer or purchase the necessary data for competitive sourcing. Interested parties are encouraged to express their interest and capability to meet the requirement within 45 days of the notice, with the primary contact being April N. Schlusser at (717) 605-7230 or via email at APRIL.SCHLUSSER@NAVY.MIL.