The company will work to remanufacture and modernize the computer-controlled radar and 20-mm gun system, Raytheon said Wednesday.
Work is scheduled to complete in September 2017 under the contract that was booked for the second quarter of 2014.
Phalanx works to detect and destroy threats to ship defense systems.
Phalanx Block 1B sensors are being used for the SeaRAM anti-ship missile defense systems on board the Navyâs Independence-class littoral combat ships.