Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a $335,728,938 modification (P00008) to a cost-plus-fixed-fee order (N0001923F0002) against a previously awarded basic ordering agreement (N0001919G0008). This modification establishes a not-to-exceed value and exercises options to provide program management, non-recurring engineering, aircraft induction, contractor field, depot site, and laser shock peening site support as well as procures associated material modification kits and special test/tooling equipment in support of calendar year 2025 modification and retrofit activities for the F-35 Joint Strike Fighter program for the Air Force, Marine Corps, Navy, non-Department of Defense (DOD) F-35 program partners, and Foreign Military Sales (FMS) customers. Work will be performed in Fort Worth, Texas, and is expected to be completed in December 2025. Fiscal 2025 aircraft procurement (Navy) funds in the amount of $45,438,003; fiscal 2025 aircraft procurement (Air Force) funds in the amount of $44,697,988; non-DOD program partner funds in the amount of $56,977,604; and FMS customer funds in the amount of $41,407,604 will be obligated at the time of award, none of will expire at the end of the current fiscal year. The order and contract being modified were not competed. Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.