Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a not-to-exceed $315,806,063 fixed-price incentive (firm target), cost-plus-incentive-fee, and cost-plus-fixed-fee, undefinitized modification (P00015) to a previously awarded contract (N0001920C0032). This modification adds scope for the procurement, delivery, installation, and configuration of F-35 Joint Strike Fighter support equipment and non-aircraft spares. Additionally, this modification provides for site activations and integrated contractor support for the Air Force, Marine Corps, Navy, non-U.S. Department of Defense (DOD) participants and Foreign Military Sales (FMS) customers. Work will be performed in Orlando, Florida (80%); and Fort Worth, Texas (20%), and is expected to be completed in December 2027. Fiscal 2022 aircraft procurement (Navy) funds in the amount of $44,226,673; fiscal 2022 aircraft procurement (Air Force) funds in the amount of $5,668,017; fiscal 2021 aircraft procurement (Air Force) funds in the amount of $100,375,581; FMS customer funds in the amount of $10,334,286; and non-U.S. DOD partner funds in the amount of $2,217,513 will be obligated at the time of award, none of which will expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.