United States, March 6 -- RTX Corp., Pratt and Whitney Military Engines, East Hartford, Connecticut, is awarded a $256,255,777 modification (P00022) to a previously awarded firm-fixed-price, cost-plus-fixed-fee, indefinite-delivery/indefinite-quantity contract (N0001920D0013). This modification adds scope to procure advanced long lead materials for the production and delivery of the F135 propulsion system spares for depot lay-in material, the F-35 global spares pool, and country unique spares in support of the Joint Strike Fighter program for the Air Force, Marine Corps, Navy, non-Department of War participants, F-35 Cooperative Program Partners, and Foreign Military Sales customers. Work will be performed in East Hartford, Connecticut (73....