Raytheon Technologies Corp., doing business as Pratt and Whitney Military Engines, East Hartford, Connecticut, is awarded a not-to-exceed $405,343,228 undefinitized contract modification (P00016) to a previously awarded firm-fixed-price, cost-plus-fixed-fee, indefinite-delivery/indefinite-quantity contract (N0001920D0013). This modification adds scope to procure spares for the production and delivery of the F135 propulsion system including spares depot and common for 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 Defense participants, F-35 Cooperative Program Partners, and Foreign Military Sales customers. Work will be performed in East Hartford, Connecticut (91%) (labor surplus area); North Berwick, Maine (4%); South Windsor, Connecticut (2%); Rockford, Illinois (1%) (labor surplus area); Santa Isabel, Puerto Rico (1%) (labor surplus area); and Phoenix, Arizona (1%), and is expected to be completed in December 2027. No funds will be obligated at the time of award, funds will be obligated on individual orders as they are issued. Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.