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| 1270 | Aircraft gunnery fire control components | 5365 | Rings, shims & spacers | 6070 | Fibre Optic accessories & supplies |
| 1280 | Aircraft bombing fire control components | 5805 | Telephone & telegraph equipment | 6105 | Motors electrical |
| 1285 | Fire control radar equip. except airbourne | 5815 | Teletype & facsimilie equip | 6110 | Electrical control equip |
| 1287 | Fire control sonar equipment | 5820 | Radio & television communications equip except airbourne | 6115 | Generators & generator sets electrical |
| 1290 | Misc fire control equipment | 5821 | Radio & television communications equip airbourne | 6116 | Fuel cell power units, components & accessories |
| 1420 | Guided missile components | 5825 | Radio navigation equip except airbourne | 6120 | Transformers, distribution & power station |
| 1430 | Guided missile remote control systems | 5826 | Radio navigation equip airbourne | 6125 | Converters, electrical, rotating |
| 1650 | Aircraft hydraulic, vacum and de-icing system components | 5830 | Intercommunication & public address systems, except airbourne | 6130 | Converters, electrical, non rotating |
| 1660 | Aircraft heating, air conditioning & pressurising equip | 5831 | Intercommunication & public address systems, airbourne | 6135 | Batteries, non rechargeable |
| 1670 | Parachutes; Aerial pickup, delivery systems & cargo tie down equip | 5835 | Sound recording & reproducing equip | 6140 | Batteries, rechargeable |
| 1680 | Miscellaneous aircraft accessories & components | 5836 | Video recording & reproducing equip | 6145 | Wire & cable, electrical |
| 1730 | Aircraft ground servicing equip | 5840 | Radar equip except airbourne | 6150 | Misc electrical power & distribution equip |
| 2910 | Engine fuel system components non aircraft | 5841 | Radar equip airbourne | 6210 | Indoor & outdoor electric lighting fixtures |
| 2915 | Engine fuel system components aircraft | 5845 | Underwater sound equip | 6220 | Electric vehicular lights & fixtures |
| 2920 | Engine electrical system components non aircraft | 5850 | Visible & invisible light communications equip | 6230 | Electric portable & hand lighting equip |
| 2925 | Engine electrical system components aircraft | 5855 | Night vision equip emitted & reflected radiation | 6240 | Electric lamps |
| 2930 | Engine cooling system components non aircraft | 5860 | Stimulated coherant radiation devices components & accessories | 6250 | Ballasts, lamp holders & starters |
| 2935 | Engine cooling system components aircraft | 5865 | Electronic counter measures, counter counter measures & quick reaction capability equip | 6260 | Non electrical lighting fixtures |
| 2940 | Engine air & oil filters, strainers, cleaners, non aircraft | 5895 | Misc communications equip | 6310 | Traffic and transit signal systems |
| 2945 | Engine air & oil filters, strainers, cleaners, aircraft | 5905 | Resistors | 6320 | Shipboard alarm & signalling systems |
| 2990 | Miscellaneous engine accessories, non aircraft | 5910 | Capacitors | 6340 | Aircraft alarm & signalling systems |
| 2995 | Miscellaneous engine accessories, aircraft | 5915 | Filters & networks | 6350 | Miscellaneous alarm signal & security detection systems |
| 3030 | Belting, drive belts, fan belts and accessories | 5920 | Fuses & lightning arrestors | 6605 | Navigational instruments |
| 3040 | Misc power transmission equip | 5925 | Circuit breakers | 6610 | Flight instruments |
| 3110 | Bearings antifriction unmounted | 5930 | Switches | 6615 | Automatic pilot mechanisms & airbourne giro components |
| 3120 | Bearings plain unmounted | 5935 | Connectors electrical | 6620 | Engine instruments |
| 3130 | Bearings mounted | 5940 | Lugs, terminal posts & terminal strips | 6625 | Electrical & electronic properties measuring & testing instruments |
| 4140 | Fans, air circulators & blower equip | 5945 | Relays & solenoids | 6630 | Chemical analysis instruments |
| 4310 | Compressors & vacum pumps | 5950 | Coils & transformers | 6635 | Physical properties testing equip |
| 4320 | Power & hand pumps | 5955 | Oscillators & piezoelectric crystals | 6645 | Time measuring instruments |
| 4520 | Space heating equip & domestic water heaters | 5960 | Electron tubes & associated hardware | 6650 | Optical instruments |
| 4810 | Valves, powered | 5961 | Semiconductor devices & associated hardware | 6655 | Geophysical & astronomical instruments |
| 4820 | Valves non powered | 5962 | Microcircuits electronic | 6660 | Meteorological instruments |
| 4920 | Aircraft maintenance & repair shop specialised equip | 5963 | Electronic modules | 6665 | Hazard detecting instruments & apparatus |
| 4921 | Torpedo maintenance repair & checkout, specialised equip | 5965 | Headsets, handsets, microphones & speakers | 6670 | Scales & balances |
| 4923 | Depth charges & underwater mines, maintenance, repair & checkout, specialised equip | 5970 | Electrical insulators and insulating materials | 6675 | Draughting, surveying and mapping instruments |
| 4927 | Rocket maintenance & repair checkout, specialised equip | 5975 | Electrical hardware & supplies | 6680 | Liquid & gas flow, liquid level & mechanical motion measuring instruments |
| 5130 | Hand tools, power driven | 5977 | Electrical contact brushes & electrodes | 6685 | Pressure, temperature & humidity measuring and controlling instruments |
| 5305 | Screws | 5985 | Antennas, waveguides & assoc equip | 6695 | Combination & misc instruments |
| 5306 | Bolts | 5990 | Synchros & resolvers | 6710 | Cameras, motion picture |
| 5307 | Studs | 5995 | Cable, cord & wire assemblies, communication equip | 6720 | Photographic projection equip |
| 5310 | Nuts & washers | 5999 | Miscellaneous electrical & electronic components | 6740 | Photographic developing & finishing equip |
| 5315 | Nails, keys & pins | 6010 | Fibre Optic conductors | 6760 | Photographic equip & accessories |
| 5320 | Rivets | 6015 | Fibre Optic cables | 7035 | ADP support equip |
| 5325 | Fastening devices | 6020 | Fibre Optic cable assemblies and harnesses | 7045 | ADP supplies |
| 5330 | Packing & gasket material | 6030 | Fibre Optic devices | 7050 | ADP components |
| 5340 | Miscellaneous hardware | 6060 | Fibre Optic interconnectors | 8475 | Specialised flight clothing & accessories |
| 5355 | Knobs & pointers |