Navy NEC · Engineering

T30A SSBN SSI Inc 4 Electronics Technician Journeyman

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. Part of the Electronics Technician rating

Overview

An SSBN SSI Increment 4 Electronics Technician Journeyman performs intermediate maintenance on Trident II D-5 SSI4 Strategic Weapon System navigation systems. The technician operates and performs basic preventive maintenance on submarine navigation and ship control electronic systems, manages navigation charts, and conducts basic navigation and piloting evolutions aboard SSBN 726 class submarines or at support facilities.

Minimum clearance: Top Secret

Core Skills

  • Trident navigation system intermediate maintenance
  • Navigation and ship-control electronics checkout and alignment
  • Navigation chart preparation and submarine piloting

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

Intermediate maintenance on Trident navigation systems and supervised electronics checkouts and alignment transfer directly to equipment testing and repair.

How to prepare: Complete a hands-on industrial electronics troubleshooting course that includes fault diagnosis, equipment setup, and post-repair testing.

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.
  • Inspect components of industrial equipment for accurate assembly and installation or for defects, such as loose connections or frayed wires.
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 T30A

    [1] NEC entry "T30A - SSBN SSI Inc 4 Electronics Technician Journeyman"; cached text line 10781; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Trident navigation system intermediate maintenance, Navigation and ship-control electronics checkout and alignment, Navigation chart preparation and submarine piloting, 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 T30A

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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