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 01 Nuclear reactors; fuel elements (cartridges), non-irradiated, for nuclear reactors; machinery and apparatus for isotopic separation. 84 01 40 Parts of nuclear reactors 84 01 40 00 Parts of nuclear reactors Commodity Code Description 84 01 40 00 000 Parts of nuclear reactors