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 AND SHAFT COUPLINGS (INCLUDING UNIVERSAL JOINTS). Commodity Code Description 84 83 10 TRANSMISSION SHAFTS AND CRANKS FOR ROAD MOTOR VEHICLE ENGINES 84 83 20 BEARING HOUSINGS INCORP. BALL/ROLLER BEARINGS: FOR ROAD MOTOR VEH.ENGINES 84 83 30 BEARING HOUSINGS,NOT INCORP.BALL/ROLLER BEARINGS:FOR ROAD MOTOR VEH. ENG. 84 83 40 GEARS & GEARING,OTHER THAN TOOTHED WHEELS... FOR ROAD MOTOR VEH. ENGINES 84 83 50 FLYWHEELS AND PULLEYS, INCL. PULLY BLOCKS, FOR ROAD MOTOR VEHICLE ENGINES 84 83 60 CLUTCHES & SHAFT COUPLINGS (INC. UNIVERSAL JOINTS): FOR MARINE CRAFT 84 83 90 MILL CHAIN SPROCKETS FOR ROAD MOTOR VEHICLE ENGINES