RTX's Raytheon unit won a contract with the U.S. Air Force that has a ceiling of $603 million.

Under the indefinite-delivery, indefinite-quantity contract, Raytheon will produce and sustain new radars for the Air Force's B-52 aircraft, the Defense Department said Tuesday.

Work under the contract will be performed in Forrest, Miss.; El Segundo, Calif.; McKinney, Texas and Warner Robins, Ga. It is expected to be completed by Aug. 20, 2031.