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Navy NEC · Engineering

V40B Anti-Sub Warfare (ASW) Mission Specialist

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

An Anti-Sub Warfare mission specialist operates equipment in the ASW Systems Suite aboard Littoral Combat Ship class vessels. The specialist performs organizational level preventive and corrective maintenance, troubleshooting, and fault isolation on the suite's equipment.

Core Skills

  • Shipboard ASW equipment fault isolation
  • ASW suite preventive and corrective maintenance
  • Littoral Combat Ship ASW equipment operation

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

ASW suite troubleshooting, fault isolation, and preventive and corrective maintenance transfer directly to diagnosing and repairing electronic equipment.

How to prepare: Complete a hands-on industrial electronics troubleshooting course to practice diagnosing equipment outside the shipboard ASW suite.

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 V40B

    [1] NEC entry "V40B - Anti-Sub Warfare (ASW) Mission Specialist"; cached text line 14116; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Shipboard ASW equipment fault isolation, ASW suite preventive and corrective maintenance, Littoral Combat Ship ASW equipment operation, 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 V40B

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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