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 and cranks; bearing housings; gears...; flywheels... 84 83 90 Parts of transmission shafts, cranks, bearing housings, gears, etc 84 83 90 00 Parts of transmission shafts, cranks, bearing housings, gears, etc Commodity Code Description 84 83 90 00 00 Parts of transmission shafts, cranks, bearing housings, gears, etc