mos.directory

Navy NEC · Engineering

T20A SSN 774 Class Navigation and Ship’s Electronic Equipment 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.

Browse Navy

Overview

SSN 774 class navigation and ship’s electronic equipment technicians operate submarine navigation equipment and related electronic systems. They perform organizational preventive and corrective maintenance on AN/WSN-7(A), AN/WSN-7(B), AN/BPS-16, Central Atmosphere Monitoring System Mark II, Digital Electromagnetic Log, and Ship Control systems.

Core Skills

  • Atmosphere monitoring system operation and maintenance
  • Digital electromagnetic log operation and maintenance
  • Ship control system preventive and corrective 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.

Electrical and Electronics Repairers, Commercial and Industrial Equipment

Preventive and corrective maintenance of submarine navigation, atmosphere monitoring, and ship control equipment transfers directly to maintaining and repairing commercial and industrial electronics.

How to prepare: Complete a hands-on industrial electronics troubleshooting course focused on diagnosing faulty equipment and verifying operation after repair.

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.
  • Install repaired equipment in various settings, such as industrial or military establishments.
Civilian tools and software (examples)
  • Circuit evaluation software
  • Computerized maintenance management system CMMS

Notes & Sources

Evidence for this guidance (2 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC T20A

    [1] NEC entry "T20A - SSN 774 Class Navigation and Ship’s Electronic Equipment Technician"; cached text line 10639; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Atmosphere monitoring system operation and maintenance, Digital electromagnetic log operation and maintenance, Ship control system preventive and corrective maintenance, 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 T20A

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

Report an error on this page