5340 - HARDWARE, COMMERCIAL
5905 - RESISTORS
5910 - CAPACITORS
5915 - FILTERS AND NETWORKS
5920 - FUSES, ARRESTORS, ABSORBERS, AND PROTECTORS
5925 - CIRCUIT BREAKERS
5930 - SWITCHES
5935 - CONNECTORS, ELECTRICAL
5945 - RELAYS AND SOLENOIDS
5950 - COILS AND TRANSFORMERS
5955 - OSCILLATORS PIEZOELECTRIC CRYSTALS
5960 - ELECTRON TUBES & ASSOC HARDWARE
5961 - SEMICONDUCTOR DEVICES AND ASSOCIATED HARDWARE
5962 - MICROCIRCUITS, ELECTRONIC
5963 - ELECTRONIC MODULES
5965 - HEADSETS, HANDSETS, MICROPHONES AND SPEAKERS
5995 - CABLE CORD WIRE ASSEMBLY - COMM EQ
5998 - ELECTRICAL AND ELECTRONIC ASSEMBLIES, BOARDS, CARDS, AND ASSOCIATED HARDWARE
5999 - MSC ELECT & ELECTRONIC COMPONENTS
6110 - ELECTRICAL CONTROL EQUIPMENT
6120 - TRANSFORMERS: DISTRIBUTION AND POWER STATION
6140 - BATTERIES, RECHARGEABLE
6145 - WIRE AND CABLE, ELECTRICAL