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). 84 83 20 BEARING HOUSINGS INCORP. BALL/ROLLER BEARINGS: FOR ROAD MOTOR VEH.ENGINES Commodity Code Description 84 83 20 10 BEARING HOUSINGS INCORP. BALL/ROLLER BEARINGS: FOR ROAD MOTOR VEH.ENGINES 84 83 20 20 BEARING HOUSINGS, INCORP. BALL/ROLLER BEARINGS: FOR MARINE ENGINES 84 83 20 30 BEARING HOUSINGS, INCORP. BALL/ROLLER BEARINGS: FOR AIRCRAFT ENGINES 84 83 20 90 OTHER BEARING HOUSINGS, INCORPORATING BALL/ROLLER BEARINGS