| Abbreviation | Definition |
|---|---|
| CTM1 | Cryptologic (maintenance Branch) Petty Officer First Class |
| CTM1 | yptologic (maintenance Branch) Petty Officer First Class |
| CTM2 | Cryptologic (maintenance Branch) Petty Officer Secon Class |
| CTM2 | yptologic (maintenance Branch) Petty Officer Secon Class |
| CTM3 | Cryptologic (maintenance Branch) Petty Officer Third Class |
| CTM3 | yptologic (maintenance Branch) Petty Officer Third Class |
| CTMC | Cryptologic (maintenance Branch) Chief Petty Officer |
| CTMC | yptologic (maintenance Branch) Chief Petty Officer |
| CTMCM | Cryptologic (maintenance Branch) Master Chief Petty Officer |
| CTMCM | yptologic (maintenance Branch) Master Chief Petty Officer |
| CTMCS | Cryptologic (maintenance Branch) Senior Chief Petty Officer |
| CTMCS | yptologic (maintenance Branch) Senior Chief Petty Officer |
| CTME | Chief Torpedoman's Mate (electrical) |
| CTME | ief Torpedoman's Mate (electrical) |
| CTMSA | Cryptologic (maintenance Branch) Seaman Apprentice |
| CTMSA | yptologic (maintenance Branch) Seaman Apprentice |
| CTMSN | Cryptologic (maintenance Branch) Seaman |
| CTMSN | yptologic (maintenance Branch) Seaman |
| CTMSR | Cryptologic (maintenance Branch) Seaman Recruit |
| CTMSR | yptologic (maintenance Branch) Seaman Recruit |