Naval Sea Systems Command issued the modification under the U.S.-UK Common Missile Compartment program, the Department of Defense said Friday.
Work under the modification will take place in Quonset Point, R.I., and York, Pa., through May 2028.
DoD noted Electric Boat will receive an initial $49.5M from domestic and foreign military funds at the time of award.
The Groton, Conn.-based submarine builder provides integrated product and process development services to the Navy’s Columbia class as part of a potential $5B contract awarded in September 2017.