| Abbreviation | Definition |
|---|---|
| CTSSN | Communications Technician (special Devices) Seaman |
| CTSSN | mmunications Technician (special Devices) Seaman |
| CTSSR | Communications Technician (special Devices) Seaman Recruit |
| CTSSR | mmunications Technician (special Devices) Seaman Recruit |
| CTT1 | Communications Technician (technical Branch) Petty Officer 1st Class |
| CTT1 | Cryptologic (technical Branch) Petty Officer 1st Class |
| CTT1 | mmunications Technician (technical Branch) Petty Officer 1st Class |
| CTT1 | yptologic (technical Branch) Petty Officer 1st Class |
| CTT2 | Communications Technician (technical Branch) Petty Officer 2nd Class |
| CTT2 | Cryptologic (technical Branch) Petty Officer 2nd Class |
| CTT2 | mmunications Technician (technical Branch) Petty Officer 2nd Class |
| CTT2 | yptologic (technical Branch) Petty Officer 2nd Class |
| CTT3 | Communications Technician (technical Branch) Petty Officer 3rd Class |
| CTT3 | Cryptologic (technicial Branch) Petty Officer 3rd Class |
| CTT3 | mmunications Technician (technical Branch) Petty Officer 3rd Class |
| CTT3 | yptologic (technicial Branch) Petty Officer 3rd Class |
| CTTC | Communications Technician (techical Branch) Chief Petty Officer |
| CTTC | Cryptologic (technical Branch) Chief Petty Officer |
| CTTC | mmunications Technician (techical Branch) Chief Petty Officer |
| CTTC | yptologic (technical Branch) Chief Petty Officer |