Navy Ratings Information
U.S. Navy Ratings and Occupational Specialties
The Navy uses a rating system instead of MOS codes. Each rating is designated by a two or three-letter abbreviation that identifies a specific occupational specialty.
For example, HM stands for Hospital Corpsman, BM for Boatswain's Mate, and IT for Information Systems Technician.
Below are the main Navy ratings organized by career fields. This is not a complete list. For the most up-to-date information, please visit the official U.S. Navy careers website.
Aviation Ratings
AB
Aviation Boatswain's Mate
ABE
Aviation Boatswain's Mate - Equipment
ABF
Aviation Boatswain's Mate - Fuel
ABH
Aviation Boatswain's Mate - Handling
AC
Air Traffic Controller
AD
Aviation Machinist's Mate
AE
Aviation Electrician's Mate
AG
Aerographer's Mate
AME
Aviation Structural Mechanic - Equipment
AM
Aviation Structural Mechanic
AO
Aviation Ordnanceman
AS
Aviation Support Equipment Technician
AT
Aviation Electronics Technician
AW
Naval Aircrewman
AZ
Aviation Maintenance Administrationman
Engineering & Hull Ratings
Administrative & Deck Ratings
BM
Boatswain's Mate
CS
Culinary Specialist
CT
Cryptologic Technician
CTI
Cryptologic Technician - Interpretive
CTM
Cryptologic Technician - Maintenance
CTN
Cryptologic Technician - Networks
CTR
Cryptologic Technician - Collection
CTT
Cryptologic Technician - Technical
GM
Gunner's Mate
IT
Information Systems Technician
LS
Logistics Specialist
MA
Master-at-Arms
MC
Mass Communication Specialist
NC
Navy Counselor
OS
Operations Specialist
PS
Personnel Specialist
QM
Quartermaster
RP
Religious Program Specialist
SH
Ship's Serviceman
YN
Yeoman