Enlisted Rate Insignias
CS
Cooks
CT
Cryptologic Technician
EM
Electrician's Mate
EN
Engineman
ET
Electronics Technician
FT
Fire Control Technician
HM
Hospital Corpsman
IC
Interior Communications Electrician
LS
Logistic Specialist
MM
Machinist's Mate
MS
Mess Management Specialist
MT
Missile Technician
PN
Personnelman
QM
Quartermaster
RD
Radarman
RM
Radioman
SD
Steward
SK
Storekeeper
ST
Sonar Technician
TM
Torpedoman's Mate
YN
Yeoman