Military Job Codes Explained: MOS, AFSC, Rate, Rating & More (Family Guide)

When your loved one joins the military, one of the first things you’ll hear is their job code:

• MOS (Army & Marine Corps)

• AFSC (Air Force & Space Force)

• Rate & Rating (Navy)

• Rating (Coast Guard)

At first, these terms sound complicated — but they’re actually simple once you understand how each branch labels its careers.

This guide explains:

• What each job code means

• How jobs are chosen

• How each branch labels specialties

• What job codes say about training and career paths

• Why families care about MOS/AFSC pride

Let’s make it easy.

Military Job Code System at a Glance

Now let’s break each branch down clearly.

U.S. Army — MOS (Military Occupational Specialty)

The Army uses MOS codes, typically two numbers followed by a letter.

Examples:

• 11B — Infantry

• 68W — Combat Medic

• 19D — Cavalry Scout

• 42A — Human Resources

• 25B — Information Technology Specialist

• 12B — Combat Engineer

What an Army MOS Tells You

An MOS determines:

• Length of training (AIT or OSUT)

• Type of unit assignment

• First duty station options

• Promotion path

• Deployment frequency

• Specialty school eligibility

Families often become proud of their Soldier’s MOS — it becomes part of their identity.

U.S. Marine Corps — MOS (Different Number System)

The Marine Corps also uses MOS codes, but the numbering system is different.

Marine MOS codes range from 0100–8999 and are grouped by field.

Examples:

• 0311 — Infantry Rifleman

• 0331 — Machine Gunner

• 5811 — Military Police

• 3531 — Motor Transport Operator

• 0621 — Field Radio Operator

Marine MOS Categories

• 01xx — Administration

• 03xx — Infantry

• 35xx — Motor Transport

• 58xx — Law Enforcement

• 60xx–70xx — Aviation

Marine MOS determines:

• Whether they attend SOI (School of Infantry) or MCT (Marine Combat Training)

• First unit assignment

• Advanced qualification schools

Marine MOS pride runs extremely deep — especially in infantry and aviation communities.

U.S. Air Force & Space Force — AFSC (Air Force Specialty Code)

The Air Force and Space Force use AFSC codes, which appear more technical.

Example: 1N0X1

Breakdown:

• 1 = Career Group (Operations)

• N = Career Field (Intelligence)

• 0 = Specialty

• X = Skill Level

• 1 = Specific role

Common AFSC Examples:

• 1N0X1 — All-Source Intelligence

• 2A5X1 — Aerospace Maintenance

• 4N0X1 — Medical Technician

• 3D1X2 — Cyber Transport

AFSC determines:

• Tech School length

• Clearance requirements

• Duty station eligibility

• Long-term career progression

Air Force and Space Force careers are known for strong technical training and advanced certifications.

U.S. Navy — Rate & Rating (Unique Structure)

The Navy system works differently than other branches.

Rating = Job Specialty

Examples:

• HM — Hospital Corpsman

• IT — Information Systems Technician

• AO — Aviation Ordnanceman

• MA — Master-at-Arms

Rate = Rank / Paygrade

Examples:

• SR — Seaman Recruit

• PO3 — Petty Officer Third Class

• CPO — Chief Petty Officer

Combined Identity Example:

HM2

• HM = Hospital Corpsman

• 2 = Petty Officer Second Class

In the Navy, identity is strongly tied to:

• Ship or submarine assignment

• Warfare qualifications (SW/AW pins)

• Rating community

Families quickly learn to say proudly:
“My daughter is a Hospital Corpsman.”

U.S. Coast Guard — Ratings

The Coast Guard system is similar to the Navy.

Examples:

• ME — Maritime Enforcement

• BM — Boatswain’s Mate

• MK — Machinery Technician

• HS — Health Services

• AMT — Aviation Maintenance Technician

Coast Guard ratings determine:

• Afloat vs ashore assignment

• Aviation vs cutter units

• Training pipeline length

• Coastal duty stations

Coast Guard careers range from maritime law enforcement to aviation rescue.

How Service Members Receive Their Job Codes

Job selection depends on:

• ASVAB scores

• Physical qualifications

• Security clearance eligibility

• Personal preference

• Branch manpower needs

Some specialties are highly competitive. Others are high-demand fields.

Operational needs of the military always play a role.

Why Understanding Their Job Code Matters

Every job code tells you:

• Where they’ll attend training

• How long school lasts

• What daily life looks like

• Likely duty station locations

• Deployment frequency

• Career growth opportunities

It also influences:

• What unit apparel they may want

• What branch-specific gear fits their specialty

Examples:

• 68W (Army Combat Medic) → Medical-themed pride apparel

• 0311 (Marine Infantry) → Infantry-based designs

• 1N0X1 (Air Force Intelligence) → Wing or squadron apparel

• HM (Navy Corpsman) → Corpsman-specific gear

Families often feel deeply connected to their service member’s specialty.

Frequently Asked Questions

Is MOS the same as a job?

Yes. MOS (or AFSC/Rating) is the official military job code.

Can service members change their job later?

Sometimes. Reclassification depends on performance and branch needs.

Does MOS or AFSC affect deployment?

Yes. Some specialties deploy more frequently.

Does job code determine duty station?

Often yes. Certain bases host specific career fields.

Is AFSC used in the Space Force?

Yes. The structure is nearly identical to the Air Force.

About Oak & Liberty

As the official Armed Forces family apparel brand, Oak and Liberty offers items that are designed for graduation milestones and everyday pride. Every purchase supports the MWR program and ships directly from our South Carolina facility (CAGE: 9DBS8).

We are honored to support families celebrating every step of their service member’s career — from MOS school to first unit and beyond.

Celebrate Their Specialty With Pride

A service member’s job code represents:

• Their training

• Their mission

• Their community

• Their future

Wearing specialty-connected apparel helps families feel part of that journey.

👉 Shop Army MOS, Marine MOS, Navy Rating, Air Force AFSC & Coast Guard Specialty Apparel
👉 Explore Graduation & Proud Family Collections
👉 Order Custom Apparel for Units, Platoons & Specialty Groups