Pump unit, Centrifug_End_Item_15B02A_NSN_4320013739078FW_PN_UA53885-4

This solicitation seeks a spare pump unit (centrifugal) for the B‑2 aircraft. The Government requires one line‑item quantity of 7 units (minimum 2, maximum 10) with delivery to the location designated “SW3211” no later than 27 July 2027. The pump unit includes the centrifugal pump(s), prime mover(s), and all components needed for full operation, built to NSN 4320‑01‑373‑9078FW, part number UA538885‑4. The purchase is a spare‑parts acquisition, not set‑aside, and will be awarded to a qualified source (Triumph Thermal Systems, LLC) under limited‑source authority.