General Dynamics has received a $696 million contract modification for additional material associated with fiscal 2019 Virginia-class submarines and fiscal 2020 Virginia-class submarines (SSN). Parts to be provided include steam and electric plant components; the main propulsion unit efforts and ship service turbine generator efforts; and miscellaneous hull, mechanical and electrical system components to support SSNs 802, 803, 804 and 805 ship construction commencing in fiscal 2019. Work will take place in Sunnyvale, California, as well as over a dozen other locations dotted throughout the continental US with a scheduled completion time scheduled for January 2019.