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 73 Parts and accessories (other than covers, carrying cases and the like) suitable 84 73 10 84 73 10 00 Commodity Code Description 84 73 10 00 00 - Parts and accessories of the machines of heading 84.69 84 73 21 00 00 -- Of the electronic calculating machines of subheading 8470.10, 8470.21 or 8470.29 84 73 29 00 00 -- Other 84 73 30 00 00 - Parts and accessories of the machines of heading 84.71 84 73 40 00 00 - Parts and accessories of the machines of heading 84.72 84 73 50 00 00 - Parts and accessories equally suitable for use with machines of two or more of the hea