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Outside Machinist (US Navy Submarine)

General Dynamics Information Technology

Company : General Dynamics Information Technology

Location : Portsmouth, NH, 03802

Posted Date : 14 October 2025

Job Type : Other

Category : Production & Manufacturing

Occupation : Machinist

Job Details

Outside Machinist (US Navy Submarine)

Make meaningful contributions that fuel critical outcomes for some of the most complex government, defense, and intelligence projects. Join GDIT as an Outside Machinist (US Navy Submarine) for a career where your growth is just as important as the mission you support.

The SUB AIT program supports the In-Service Attack Submarines Program Office (PMS 392) under Program Executive Office Attack Submarines (PEO SSN) to achieve optimal submarine operational readiness by providing production support, component repairs and technical support to accomplish repair, maintenance, removal/installation, troubleshooting and associated testing for Chief of Naval Operations (CNO) submarine maintenance availabilities.

The efforts associated with this program will help restore and maintain the material condition and modernization of the fast attack submarines of the United States Navy.

Requirements:

  • 2+ years' experience performing repair work on nuclear submarines within the trade they are being assigned.
  • HS/GED
  • Must be US Citizen.
  • Must be able to obtain and maintain Secret Clearance

Outside Machinist Tasks:

Open, inspect, repair and test components of submarine sea water, hydraulic and diesel systems.

Inspect and repair hatches/water tight openings. Overhaul VH valves. ASW/MSW hull and backup valve repairs. Repair AHP valves.

Perform repair and restoration work on thin and fat line systems. Remove, repair, install, align and test sail systems (periscope, masts, antennas).

Perform repair and restoration work on shaft, shaft couplings and vibration reducers. Overhaul main SSTG turbine. Inspect/overhaul main reduction gears. Inspect/overhaul condensers, hot wells and associated components.

Remove/refurbish and reinstall fairwater and/or stern plane components. Refurbish and align submarine steering and diving system linkages. Repair/replace anchor windlass and associated anchor system components.

Outside Machinist Skill Requirements:

Experience repairing/overhauling ships' mechanical and hydraulic components similar to that outlined for TSD MB. Experience performing SUBSAFE work IAW NAVSEA 0924-062-0010 L/R (Submarine Safety Requirements Manual). Steam Plant Cleanliness trained and qualified IAW NAVSEAINST 9210.36F as implemented by Corporate Naval Shipyard Uniform Industrial Process Instruction 5050-450A.

Specialized experience with removal, repair, installation, alignment and overhaul of submarine sail components and or mechanical work on thin/fat line systems. Experience performing SUBSAFE work IAW NAVSEA 0924-062-0010 L/R (Submarine Safety Requirements Manual).

Experience repairing/overhauling ships mechanical components similar to that outlined for TSD MH. Specialized experience with removal, repair, installation, alignment and overhaul of submarine turbines, reduction gears, shafting and thrust bearings. Experience performing SUBSAFE work IAW NAVSEA 0924-062-0010 L/R (Submarine Safety Requirements Manual). Steam Plant Cleanliness trained and qualified IAW NAVSEAINST 9210.36F as implemented by Corporate Naval Shipyard Uniform Industrial Process Instruction 5050-450A.

Experience repairing/overhauling ships mechanical components similar to that outlined for TSD MB. Specialized experience with removal, repair, installation, alignment, trouble shooting and overhaul of submarine steering and diving systems/ components (e.g. rudder, stern plane, fairwater plane and anchor).

GDIT IS YOUR PLACE

At GDIT, the mission is our purpose, and our people are at the center of everything we do. Growth: AI-powered career tool that identifies career steps and learning opportunities Support: An internal mobility team focused on helping you achieve your career goals Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off Community: Award-winning culture of innovation and a military-friendly workplace OWN YOUR OPPORTUNITY

Explore a career at GDIT and you'll find endless opportunities to grow alongside colleagues who share your ambition to deliver your best work.

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