Section 16 Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers and parts and accessories of such articles 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 83 Transmission shafts (including cam shafts and crank shafts) and cranks; bearing housings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints) Commodity Code Description 84 83 10 - - - For road motor vehicle engines 84 83 20 - - - For road motor vehicle engines 84 83 30 - - - For road motor vehicle engines 84 83 40 - - - For road motor vehicle engines 84 83 50 - - - For road motor vehicle engines 84 83 60 - - - For marine craft 84 83 90 - - - - Mill chain sprockets