Inside Machinist 3rd Class Mechanic

Job Description
Position Summary:

The inside machinist must operate in one of three sections: Machining, Valves or Pumps. The specific key responsibilities and functional knowledge will vary depending on the designated section.

All inside machinists are encouraged, but not required, to gain experience in any section other than their designated section.

Key Responsibilities & Functional Knowledge:

This list is representative of the key areas of responsibility and functional knowledge required of a third class mechanic in the Inside Machine shop. A third class mechanic must demonstrate a developing knowledge of the skills, functional knowledge and abilities required to perform tasks in these and related areas of responsibility.

Developing knowledge means that the mechanic understands how to perform tasks in these categories (including, but not limited to, the specific tasks identified below) and is able to complete them with minimal assistance.This also means that the mechanic has the necessary level of knowledge of the equipment, protective gear, and machinery required to complete these tasks. In some cases, as specified, the third class mechanic is expected to assist, rather than completing the task independently.

Machinists Assigned to the Machining Section

  • Operate Machinery - Must know how to operate the following machines safely, and be developing additional skills in the following key areas:
    • Lathes
      • Developing skills to hold tighter tolerances
      • Thread internally and externally
      • Operate on the following types of lathes:
        • Lathe to 24"
        • Lathe over 24"
      • Operate the Vertical Turrent Lathe
      • Perform basic maintenance on the lathes
    • Milling machines
      • Developing skills to hold tighter tolerances
      • Complete in-line valve repairs
      • Perform basic maintenance on the vertical milling machine
      • Operate vertical mills
      • Trained on the uses of the Horizontal boring mill based on department need (preferred, but not required)
    • Drill presses
      • Developing the skills needed to operate the drill press
      • Assess the drill presses for basic repairs
      • Perform basic repairs to the drill presses
    • Grinders
      • Trained on operating and providing maintenance to surface or gate grinders based on department need (preferred, but not required)
    • Flange Facer
      • Further developing the skills at operating face flanges on valves and other parts
    • Operate Overhead Crane
      • Able to accomplish rigging of equipment and materials
      • Be able to obtain a crane operators license
  • Machining Tools
    • Operate band saw
    • Operate a micrometer
    • Use precision measuring tools
  • Other
    • Manufacture parts
    • Maintain and repair machinery
    • Repair ship components using more blueprints, sketches and sample parts
    • Disassemble, clean, inspect and repair various ships components
    • Assist with in-place machine operations when needed to include: machining, drilling, milling, facing and boring
    • Complete basic drawings and sketches for use in manufacturing parts mechanical ability
    • Produce machine work at an efficient rate with minimal or no defects that are out of tolerance
    • Plan and accomplish tasks in an efficient manner

Machinists Assigned to the Valve Section
  • Operate Machinery - Must know how to operate the following machines safely, and be developing additional skills in the following key areas:
    • Lathes
      • Must be developing skills to hold tighter tolerances
      • Operate the lathe to 24" to manufacture lathes, machine laps, seats and gates
      • Know the basic operations of the Vertical Turrent Lathe to manufacture lathes, machine laps, seats, and gates
      • Assess and provide basic maintenance for lathes
      • Trained in operating and performing maintenance on the Lathe over 24" (preferred, but not required)
    • Milling machines
      • Hold tighter tolerances
      • Accomplish basic in-line valve repairs
      • Know operations of the vertical mill
      • Assess and provide maintenance for the mill
      • Trained on the basic uses of the vertical mill based on department need (preferred, but not required)
    • Drill presses
      • Operate the drill press
      • Assess the drill presses for repairs
      • Make repairs to the drill presses
    • Grinders
      • Gate grinder
        • Operate the gate grinder
        • Know uses of the gate grinder to include grinding gates for valves and fit of the gate for a valve body
        • Provide maintenance and repair for the grinder
      • Trained on operating and providing maintenance to the surface grinders based on department need (preferred, but not required)
    • Flange Facer
      • Work with face flanges on valves and other parts in the shop and on the ship
  • Valve Assembly, Disassembly, Inspection and Repair
    • Know valve repair procedure
    • Perform work with stencil and mark
    • Assist with assembling valves by following sketches, manuals and/or technical documents
    • Assist with disassembling valves
    • Clean the valve parts without damaging
    • Assist with inspecting and repairing valves
  • Valve Hydro
    • Assist with testing the valve hydro
  • Valve in line repair
    • Assist with performing valve in line repair on the ship (preferred, but not required)
    • Understand inline repairs
    • Perform basic machining safely
  • Valve Troubleshoot
    • Assist with valve repairs and troubleshooting problems
  • Machining Tools
    • Operate a band saw
    • Operate a micrometer
    • Use precision measuring tools
Machinists Assigned to the Pump Section - (Specialty section assigned based on shop need and employee skill and ability)
  • Know the basic pump operations
  • Know the basics of the mechanics of pump parts
  • Assist with disassembling pumps
  • Assist with cleaning pumps, without damaging
  • Assist with inspecting, troubleshooting and repairing pumps
  • Assist with reassembling pumps


Required Skills and Education
Minimum Education: High School Diploma/GED
Minimum Relevant Experience: 2 to 4 yrs.

Practical Theory Requirements:
A third class mechanic must demonstrate a developing understanding of lathe operation, drill press operations, milling machine operations, blueprint reading and layout of projects to be machined.

Other Requirements:
  • Must be able to read, write and comprehend simple instructions
  • Must be able to apply common sense understanding to carry out instructions in written, oral or diagram form
  • Must be able to calculate and understand units of measure, including fractions and decimals
  • Must know how to measure using a scale and tape measure
  • Must be able to wear applicable PPE (Hard hat, safety goggles, gloves, steel toes shoes, ear protection, respirator when necessary)
  • Must be able to obtain a government access badge
  • Must be able to read, write and comprehend simple instructions
  • Must be able to apply common sense understanding to carry out instructions in written, oral or diagram form
  • Must be able to calculate and understand units of measure, including fractions and decimals
  • Must know how to measure using a scale and tape measure
Must be able to wear applicable PPE (Hard hat, safety goggles, gloves, steel toes shoes, ear protection, respirator when necessary)

Preferred Skills and Education
The following skills are not required but based on shop need and interest:
  • Stress Relieving
    • Parts and Repair
  • Shaft Straightening
Shaft Overhaul

About BAE Systems Platforms & Services
BAE Systems is a premier global defense and security company with approximately 90,000 employees delivering a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support and services. With headquarters in Arlington, Virginia, this Platform and Services Group of BAE Systems employs nearly 11,000 professionals at more than 30 locations worldwide. Platform and Services is a global leader in the design, development, production, and service support of armored combat vehicles, major and minor caliber naval guns and missile launchers, canisters, artillery systems, and intelligent munitions. People are the greatest asset in any Company. Equal Opportunity Employer/Females/Minorities/Veterans/Disabled/Sexual Orientation/Gender Identity/Gender Expression


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