Northrop Grumman Mission Systems, Rolling Meadows, Illinois, has been awarded an estimated $122,916,781 modification (P00001) to a five-year base contract (SPRBL1-22-D-0008) with no option periods adding spare parts for the AN/APR-39C(v)1 system. This is a firm-fixed-price, indefinite-quantity contract. Location of performance is Illinois, with a March 30, 2027, performance completion date. Using military service is Army. Type of appropriation is fiscal 2022 through 2027 Army working capital funds. The contracting activity is the Defense Logistics Agency Land and Maritime, Aberdeen Proving Ground, Maryland.