Lockheed Martin Rotary and Mission Systems’ (LM-RMS), Manassas, Virginia, is awarded a $53,100,635 cost-plus-incentive-fee modification to previously awarded contract N00024-18-C-6258 to exercise options for material production and spares in support of all new construction and in-service class submarines. Work will be performed in Manassas, Virginia (76%); Chantilly, Virginia (13%); Marion, Massachusetts (7%); and Newport, Rhode Island (4%), and is expected to be completed by December 2023. Fiscal 2021 research, development, test and evaluation (Navy) funds in the amount of $3,414,691 (43%); fiscal 2018 shipbuilding and conversion (Navy) funds in the amount of $2,763,306 (35%); fiscal 2020 other procurement (Navy) funds in the amount of $865,858 (11%); fiscal 2021 other procurement (Navy) funds in the amount of $685,135 (9%); and fiscal 2019 shipbuilding and conversion (Navy) funds in the amount of $127,000 (2%) will be obligated at time of award and will not expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C., is the contracting activity.