| PSC | Description
|
| 5905 | Resistors |
| 5910 | Capacitors |
| 5915 | Filters and Networks |
| 5920 | Fuses, Arrestors, Absorbers, and Protectors |
| 5925 | Circuit Breakers |
| 5930 | Switches |
| 5935 | Connectors, Electrical |
| 5940 | Lugs, Terminals, and Terminal Strips |
| 5945 | Relays and Solenoids |
| 5950 | Coils and Transformers |
| 5955 | Oscillators and Piezoelectric Crystals |
| 5960 | Electron Tubes and Associated Hardware |
| 5961 | Semiconductor Devices and Associated Hardware |
| 5962 | Microcircuits, Electronic |
| 5963 | Electronic Modules |
| 5965 | Headsets, Handsets, Microphones and Speakers |
| 5970 | Electrical Insulators and Insulating Materials |
| 5975 | Electrical Hardware and Supplies |
| 5977 | Electrical Contact Brushes and Electrodes |
| 5980 | Optoelectronic Devices and Associated Hardware |
| 5985 | Antennas, Waveguides, and Related Equipment |
| 5990 | Synchros and Resolvers |
| 5995 | Cable, Cord, and Wire Assemblies: Communication Equipment |
| 5996 | Amplifiers |
| 5998 | Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware |
| 5999 | Miscellaneous Electrical and Electronic Components |