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Navy NEC · Engineering

F20A Support Equipment Tow Tractor Technician

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 support equipment tow tractor technician performs on equipment repairs and intermediate maintenance on diesel engines, drive trains, brakes, and steering systems. The technician also works on associated mobile, hydraulic, and pneumatic systems and their components.

Core Skills

  • On-equipment diesel engine repair
  • Drivetrain, brake, and steering system maintenance
  • Hydraulic and pneumatic component maintenance

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.

Mobile Heavy Equipment Mechanics, Except Engines

Tow tractor drivetrain, brake, steering, hydraulic, and pneumatic maintenance transfers directly to mechanical repair of mobile heavy equipment.

How to prepare: Complete hands-on training in inspecting and testing a civilian heavy-equipment model against its manufacturer's service specifications.

What the civilian work involves
  • Repair and replace damaged or worn parts.
  • Test mechanical products and equipment after repair or assembly to ensure proper performance and compliance with manufacturers' specifications.
  • Operate and inspect machines or heavy equipment to diagnose defects.
Civilian tools and software (examples)
  • Maintenance management software
  • Recordkeeping software

Bus and Truck Mechanics and Diesel Engine Specialists

On-equipment diesel engine repair and maintenance of drivetrains, brakes, and steering systems provide a direct mechanical foundation for truck and bus repair.

How to prepare: Take a practical diesel diagnostic course using test instruments and Cummins INSITE to build familiarity with civilian engine troubleshooting.

What the civilian work involves
  • Inspect brake systems, steering mechanisms, wheel bearings, and other important parts to ensure that they are in proper operating condition.
  • Adjust and reline brakes, align wheels, tighten bolts and screws, and reassemble equipment.
  • Attach test instruments to equipment, and read dials and gauges to diagnose malfunctions.
Civilian tools and software (examples)
  • Cummins INSITE
  • Computerized maintenance management system software CMMS

Notes & Sources

Evidence for this guidance (3 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC F20A

    [1] NEC entry "F20A - Support Equipment Tow Tractor Technician"; cached text line 5288; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: On-equipment diesel engine repair, Drivetrain, brake, and steering system maintenance, Hydraulic and pneumatic component maintenance, Mobile Heavy Equipment Mechanics, Except Engines (O*NET 49-3042.00), Bus and Truck Mechanics and Diesel Engine Specialists (O*NET 49-3031.00)

  2. O*NET: Mobile Heavy Equipment Mechanics, Except Engines

    [2] O*NET 30.3 occupational data

    Supports: Mobile Heavy Equipment Mechanics, Except Engines (O*NET 49-3042.00)

  3. O*NET: Bus and Truck Mechanics and Diesel Engine Specialists

    [3] O*NET 30.3 occupational data

    Supports: Bus and Truck Mechanics and Diesel Engine Specialists (O*NET 49-3031.00)

Defense contractor jobs for F20A

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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