Harmonized Tariff Schedule of the U.S. › Chapter 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
8483.90.50.20Tariff line
Classification path
Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof
8483
Toothed wheels, chain sprockets and other transmission elements presented separately; parts
Parts of gearing, gear boxes and other speed changers
Parts of gear boxes and speed changers for wind turbines
8483.90.50.20
Rates of duty
General rate (Column 1)2.5%
SpecialFree (A*, AU, B, BH, C, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 227.5%
Unitkg
Free (A*, AU, B, BH, C, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 2860
Measure flags
for origin CN, entry date 2026-10-26 · base rate 2.5%
- Section 301 forced-labor tariff (12.5%)9903.05.31Conditional+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 8483.90.50 is on L3
- 232 steel / aluminum / copper & derivatives9903.82.09Conditional+25%General (all other countries) | Parts of gear boxes and speed changers for wind turbines
Confirmed total 27.5% · max 52.5%Full duty breakdown →