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Navy NEC · Engineering

U32A Computer Numerically Controlled Machinist

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

A Navy Enlisted Classification: a skill designation sailors hold in addition to their rating.

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Overview

A Computer Numerically Controlled Machinist works with CNC lathes, milling machines, and associated equipment. The machinist applies CNC theory using Computer Aided Design and Computer Aided Machining software.

Core Skills

  • Computer-aided design for CNC machining
  • Computer-aided machining software application

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Computer Numerically Controlled Tool Operators

Knowledge of CNC lathe and milling machine applications using CAD and CAM software transfers directly to computer-controlled machining work.

How to prepare: Complete a supervised CNC setup and operation exercise that includes measuring the finished workpiece against its specifications.

What the civilian work involves
  • Set up and operate computer-controlled machines or robots to perform one or more machine functions on metal or plastic workpieces.
  • Review program specifications or blueprints to determine and set machine operations and sequencing, finished workpiece dimensions, or numerical control sequences.
  • Measure dimensions of finished workpieces to ensure conformance to specifications, using precision measuring instruments, templates, and fixtures.
Civilian tools and software (examples)
  • Autodesk AutoCAD
  • Dassault Systemes SolidWorks

Computer Numerically Controlled Tool Programmers

CAD and CAM application knowledge for CNC lathes and milling machines provides a foundation for planning and validating machining programs.

How to prepare: Build a sample CAM project that documents cutting-tool selection, operation sequence, and a simulated trial run.

What the civilian work involves
  • Determine the sequence of machine operations, and select the proper cutting tools needed to machine workpieces into the desired shapes.
  • Determine reference points, machine cutting paths, or hole locations, and compute angular and linear dimensions, radii, and curvatures.
  • Observe machines on trial runs or conduct computer simulations to ensure that programs and machinery will function properly and produce items that meet specifications.
Civilian tools and software (examples)
  • Autodesk AutoCAD
  • Dassault Systemes SolidWorks

Notes & Sources

Evidence for this guidance (3 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC U32A

    [1] NEC entry "U32A - Computer Numerically Controlled Machinist"; cached text line 11799; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Computer-aided design for CNC machining, Computer-aided machining software application, Computer Numerically Controlled Tool Operators (O*NET 51-9161.00), Computer Numerically Controlled Tool Programmers (O*NET 51-9162.00)

  2. O*NET: Computer Numerically Controlled Tool Operators

    [2] O*NET 30.3 occupational data

    Supports: Computer Numerically Controlled Tool Operators (O*NET 51-9161.00)

  3. O*NET: Computer Numerically Controlled Tool Programmers

    [3] O*NET 30.3 occupational data

    Supports: Computer Numerically Controlled Tool Programmers (O*NET 51-9162.00)

Defense contractor jobs for U32A

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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