Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a not-to-exceed $411,810,561 firm-fixed-price, cost-plus-fixed-fee, indefinite-delivery/indefinite-quantity undefinitized contract. This contract procures initial spares to include global spares packages, base spares packages, deployment spares packages, and afloat spares packages in support of F-35 Lightning II Joint Strike Fighter air vehicle delivery schedules for the Navy Marine Corps, Air Force, non-U.S. Department of Defense participants, and Foreign Military Sales customers. Work will be performed in Fort Worth and is expected to be completed in September 2026. No funds will be obligated at the time of award; funds will be obligated on individual orders as they are issued. This contract was not competitively procured pursuant to 10 U.S. Code 2304(c)(1). The Naval Air Systems Command, Patuxent River, Md., is the contracting activity (N0001921D0001). (Source: DoD, 09/13/21) Gulf Coast note: Eglin Air Force Base, Fla., is home of an F-35 training center and reprogramming labs.