| 58 | 5805 | Telephone and Telegraph Equipment |
| 58 | 5810 | Communications Security Equipment and Components |
| 58 | 5811 | Other Cryptologic Equipment and Components |
| 58 | 5815 | Teletype and Facsimile Equipment |
| 58 | 5820 | Radio and Television Communication Equipment, Except Airborne |
| 58 | 5821 | Radio and Television Communication Equipment, Airborne |
| 58 | 5825 | Radio Navigation Equipment, Except Airborne |
| 58 | 5826 | Radio Navigation Equipment, Airborne |
| 58 | 5830 | Intercommunication and Public Address Systems, Except Airborne |
| 58 | 5831 | Intercommunication and Public Address Systems, Airborne |
| 58 | 5835 | Sound Recording and Reproducing Equipment |
| 58 | 5836 | Video Recording and Reproducing Equipment |
| 58 | 5840 | Radar Equipment, Except Airborne |
| 58 | 5841 | Radar Equipment, Airborne |
| 58 | 5845 | Underwater Sound Equipment |
| 58 | 5850 | Visible and Invisible Light Communication Equipment |
| 58 | 5855 | Night Vision Equipment, Emitted and Reflected Radiation |
| 58 | 5859 | Historical FSC |
| 58 | 5860 | Stimulated Coherent Radiation Devices, Components, and Accessories |
| 58 | 5865 | Electronic Countermeasures, Counter-Countermeasures and Quick Reaction Capability Equipment |
| 58 | 5895 | Miscellaneous Communication Equipment |
| 58 | 5896 | Historical FSC |
