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Marine Corps MOS · Aviation

6323 Aircraft Avionics Technician, CH-53

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

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Overview

CH-53 aircraft avionics technicians install, remove, inspect, test, maintain, and repair avionics system components and ancillary equipment. They work on installed communication, navigation, electrical, and deceptive electronic countermeasures systems at the organizational maintenance level.

Minimum clearance: Secret

Minimum ASVAB: CL 105 or EL 105

ASVAB policy: Not policy-reviewed · coverage unknown · as of 2026-10-19

Program scope has not been reviewed.

Policy applicability and coverage of the program's score routes have not been reviewed. Shown-route arithmetic is not an eligibility decision.

Source: navmc-1200-1l-fy26 (source date 2025-03). Policy applicability has not been established.

See if you would hit this score: free ASVAB practice test

Core Skills

  • Deceptive electronic countermeasures system maintenance
  • Aircraft communications and navigation component repair
  • Installed electrical system inspection and testing

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.

Avionics Technicians

Installing, testing, and repairing CH-53 communications, navigation, and electrical components directly overlaps with civilian avionics maintenance.

How to prepare: Use the ASTM NCATT AET exam content to identify and study gaps in civilian aircraft electronics and maintenance practices. For work maintaining, adjusting, or internally repairing FCC-licensed aviation radiotelephone transmitters, plan for the General Radiotelephone Operator License.

What the civilian work involves
  • Test and troubleshoot instruments, components, and assemblies, using circuit testers, oscilloscopes, or voltmeters.
  • Adjust, repair, or replace malfunctioning components or assemblies, using hand tools or soldering irons.
  • Install electrical and electronic components, assemblies, and systems in aircraft, using hand tools, power tools, or soldering irons.

Electrical and Electronics Repairers, Commercial and Industrial Equipment

Testing, inspecting, and repairing installed aircraft electrical and electronic components provides a practical foundation for industrial electronic equipment repair.

How to prepare: Complete a hands-on industrial electronics lab 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.
  • 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

Training & Development

Choose credentials for your target role. COOL funding markers describe program listings, not a guarantee of eligibility or funding.

Getting Started

  • ASTM NCATT Aircraft Electronics Technician (AET)

    Validate aircraft electronics fundamentals and common maintenance knowledge for civilian avionics work.

    Eligibility and preparation: No mandatory education, experience, or prior certification is required to take the examination.

    For: Avionics Technicians

  • General Radiotelephone Operator License (PG)

    Support aviation radio transmitter maintenance through FCC rules knowledge and radio electronics examination.

    Eligibility and preparation: Satisfactory knowledge of FCC rules, ability to send and receive spoken messages correctly in English, and passing written Elements 1 and 3 or receiving credit are required.

    For: Avionics Technicians

Notes & Sources

Evidence for this guidance (8 documents)
  1. NAVMC 1200.1L (FY26, in force): MOS 6323

    [1] MOS 6323 section "a. Summary"; cached text line 51994; NAVMC 1200.1L signed 2025-03-07, in force until 2026-10-01

    Supports: Deceptive electronic countermeasures system maintenance, Aircraft communications and navigation component repair, Installed electrical system inspection and testing, Avionics Technicians (O*NET 49-2091.00), Electrical and Electronics Repairers, Commercial and Industrial Equipment (O*NET 49-2094.00)

    [2]NAVMC 1200.1L MOS 6323: Related SOC titles · MOS 6323 section "e. Related Standard Occupational Classification"

    Supports: Avionics Technicians (O*NET 49-2091.00)

  2. O*NET: Avionics Technicians

    [3] O*NET 30.3 occupational data

    Supports: Avionics Technicians (O*NET 49-2091.00)

  3. COOL credential mapping: ASTM NCATT Aircraft Electronics Technician (AET)

    [4] 6323 cached COOL credential feed

    Supports: Avionics Technicians (O*NET 49-2091.00), ASTM NCATT Aircraft Electronics Technician (AET)

  4. COOL credential mapping: General Radiotelephone Operator License (PG)

    [5] 6323 cached COOL credential feed

    Supports: Avionics Technicians (O*NET 49-2091.00), General Radiotelephone Operator License (PG)

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

    [6] O*NET 30.3 occupational data

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

  6. SpaceTEC Partners, Inc.: Qualifications for ASTM NCATT Certifications

    [7] Sole qualifications statement on page; retrieved 2026-09-23

    Supports: ASTM NCATT Aircraft Electronics Technician (AET)

  7. eCFR: 47 CFR 13.201 - Qualifying for a commercial operator license or endorsement (FCC)

    [8] sec. 13.201(a) and (b)(2); eCFR current through issue date 2026-09-21, text retrieved 2026-09-23 via eCFR API

    Supports: General Radiotelephone Operator License (PG)

  8. eCFR: 47 CFR 13.203 - Examination elements (FCC commercial radio operators)

    [9] sec. 13.203(a)(1)-(2); eCFR current through 2026-09-21, retrieved 2026-09-23 via eCFR API

    Supports: General Radiotelephone Operator License (PG)

Defense contractor jobs for 6323

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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