Military Occupational Specialty

Military Occupational Specialty code or MOS, is a nine character code used in the United States Army and United States Marines to identify a specific job. Each MOS are labeled with a short alphanumerical code called a military occupational specialty code (MOSC), which consists of a two-digit number appended by a Latin letter.

Infantry Branch (IN)

Officer

• 11A Infantry Officer

Enlisted

• 11B Combat Infantry (Includes soldiers formerly designated 11M (Mechanized) and 11H (Anti-Armor))
• 11BV Ranger
• 11BV/B4 Ranger Sniper
• 11C Indirect Fire Support (Mortarman)
• 11X Infantry Recruit (status upon infantry initial entry training; turns into 11B or 11C)
• 11Z Infantry Senior Sergeant

Field Artillery Branch (FA)

Officer

• 13A Field Artillery Officer

Enlisted

• 13F Fire Support Specialist
• 13M MLRS/HIMARS Crewmember
• 13Z Field Artillery Senior Sergeant
• 131A Field Artillery Targeting Technician

Aviation Branch (AV)

Officer

• 15A Aviation, General
• 15B Aviation Combined Arms Operations

Warrant

• 153A Rotary Wing Aviator (Aircraft Nonspecific)
• 153D Rotary Wing Gunner (Aircraft Nonspecific)
• 155A Fixed Wing Aviator (Aircraft Nonspecific)

Enlisted

• 15Q Air Traffic Control Operator
• 15T Helicopter Crew Member
• 15W UAV Operator (Unmanned Aerial Vehicle Operator)

Special Forces (SF)

Officer

• 18A Special Forces Officer

Enlisted

• 18X Special Forces Candidate

Armor Branch (AR)

Officer

• 19A Armor, General
• 19B Armor (in an armor slot)

Enlisted

• 19C Cavalry
• 19D Cav Scout
• 19K Armor Crew Member
• 19Z Armor Senior Sergeant

Medical Corps Branch (MC)

Officer

• 61N Flight Surgeon

Enlisted

• 68W Corpsman (Healthcare Specialist or Combat Medic)
• 68WF6 Flight Medic
• 68WV Ranger Medic