Section 16 MACHINERY AND MECHANICAL APPLIANCES; ELECTRICAL EQUIPMENT; PARTS THERE OF; SOUND RECORDERS AND REPRODUCERS, TELEVISION IMAGE AND SOUND RECORD ERS 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 o 84 09 10 84 09 10 00 Commodity Code Description 84 09 10 00 00 - For aircraft engines 84 09 91 10 00 --- Of subheading 8407.2110,8407.2120 or 8408.1000 84 09 99 00 00 -- Other: