Northrup Grumman Systems Corp., Melbourne, Florida, is awarded a $458,208,037 cost-plus-incentive-fee, cost-plus-fixed-fee order (N0001923F2625) against a previously issued basic ordering agreement (N0001920G0005). This order provides for retrofit installation of the cockpit technical refresh and theater combat identification, to replace the current integrated navigation and controls and display systems and tactical mission computer and display systems on E-2D Advanced Hawkeye aircraft. Work will be performed in Melbourne, Florida (49.7%); Cedar Rapids, Iowa (17.3%); Bloomington, Maryland (15.7%); St. Augustine, Florida (2.3%); Rolling Meadows, Illinois (2%); Ft. Lauderdale, Florida (1.7%); Greenlawn, New York (1.6%); Falls Church, Virginia (1.6%); Woodland Hill, California (1.4%); Laval, Quebec, Canada (0.01%); and various locations within the continental U.S. (6.69%), and is expected to be completed in September 2028. Fiscal 2023 research, development, test and evaluation (Navy) funds in the amount of $66,517,434 will be obligated at time of award, none of which will expire at the end of the fiscal year. Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.