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Navy NEC · Engineering

V31B Navigation Systems Maintenance 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 Navigation Systems Maintenance Technician performs organizational level maintenance on shipboard navigation systems, including the AN/WSN-7, integrated bridge and voyage management systems, AN/WSN-9, and AN/SSN-6. The technician uses online and offline tests, test equipment, and user complaints to isolate problems and take maintenance action while ensuring continuous operation during ship readiness conditions I through V.

Minimum clearance: Secret

Core Skills

  • Ring laser gyro navigation system maintenance
  • Digital hybrid speed log maintenance
  • Navigation sensor interface and control display maintenance
  • Fault isolation using tests and operator reports

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.

Electrical and Electronics Repairers, Commercial and Industrial Equipment

Shipboard navigation equipment maintenance transfers directly to diagnosing electronic system faults with test equipment and taking corrective maintenance action.

How to prepare: Complete hands-on training in troubleshooting commercial or industrial electronic equipment to extend your navigation-system diagnostic experience to civilian equipment.

What the civilian work involves
  • Test faulty equipment to diagnose malfunctions, using test equipment or software, and applying knowledge of the functional operation of electronic units and systems.
  • Set up and test industrial equipment to ensure that it functions properly.
Civilian tools and software (examples)
  • Circuit evaluation software

Notes & Sources

Evidence for this guidance (2 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC V31B

    [1] NEC entry "V31B - Navigation Systems Maintenance Technician"; cached text line 13802; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Ring laser gyro navigation system maintenance, Digital hybrid speed log maintenance, Navigation sensor interface and control display maintenance, Fault isolation using tests and operator reports, Electrical and Electronics Repairers, Commercial and Industrial Equipment (O*NET 49-2094.00)

  2. O*NET: Electrical and Electronics Repairers, Commercial and Industrial Equipment

    [2] O*NET 30.3 occupational data

    Supports: Electrical and Electronics Repairers, Commercial and Industrial Equipment (O*NET 49-2094.00)

Defense contractor jobs for V31B

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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