An outside machinist performs general maintenance on ships and submarines, including nuclear powered vessels. Outside of nuclear work and subsafe machinery, an outside machinist’s duties can entail performing any necessary service task on a ship or submarine. Your responsibilities are vast in this career. You can be asked to perform almost any work on any of the marine vessels in the shipyard. You must be well-versed in using a wide variety of equipment. For example, you may perform assembly and installation of ship and submarine components such as motors, propulsion machinery, and any associated equipment or components. You can lay out passage holes on bulkheads, decks, and other surfaces as needed. You install ship components like steering gear, pumps, or propelling machinery. In short, you do whatever work is necessary on marine vessels and need the vast skills that go along with that.