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