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 09 Parts suitable for use solely or principally with the engines of heading 84.07 or 84.08. 84 09 99 Other Commodity Code Description 84 09 99 00 Other