Nuclear Reactors, Boilers, Machinery · $187.9M monthly imports · 100% from 1 countries · Updated daily from USITC
General
2.5%
Special
Free (A*,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2
27.5%
Trade Agreement Eligibility
Notes
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Monthly Imports
$187.9M
2026-01
Trade Concentration
100%
from top 3 of 1 origins
Regulatory Pressure
LOW
8 rulings — · 0 reg · 0 cases
Global Rates
🇺🇸 2.5%
🇬🇧 United Kingdom: N/A · 🇪🇺 European Union: N/A · 🇨🇦 Canada: Free · 🇧🇷 Brazil: 1 NCM code
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Data compiled from USITC HTS, US Census Bureau, CBP CROSS Rulings, HMRC / DG TAXUD / CBSA / SISCOMEX · As of 2026-04-28 · Updates monthly
100% of US imports for this code come from just 1 countries. High origin concentration increases exposure to trade disruptions or tariff escalations.
This is a high-volume import code — $188M in monthly US imports. Duty rate changes or trade remedy actions on this code have significant economic impact.
List 1 — ~$34B of Chinese goods (machinery, electronics, industrial components)
Active — 7.5%–25% additional duties on Chinese-origin goods across four tranches (Lists 1–4A), with higher 2024/2025 increases on targeted product categories.
Effective 2018-07-06
These additional tariffs apply on top of the general duty rate. View full trade remedy tracker →
| Code | Description | Rate |
|---|---|---|
| 8483.90.50 | Parts of gearing, gear boxes and other speed changers | 2.5% |
| 8483.90.50.10 | Forged gear blanks | — |
| 8483.90.50.20 | Parts of gear boxes and speed changers for wind turbines | — |
| 8483.90.50.80 | Other | — |
Gears; Gearing; Toothed Wheel; Teeth; Spur; Helical; Parts of Compression Ignition Engines; Worm Gears; Shaft Mounting Hubs; 8483.40.90; HQ 089554, Modified
Protest 2904-95-100074; Cam gears; Hay baler, parts; Agricultural machinery
Protest No. 2904-91-000123; Forgings; Inner And Outer Rings, Races For Slewing Rings Of Fork Lift Trucks; Gears; Gearing; Parts; Subheading 7326.19.00; HQ 083066
Gears, Gearing, Pitman Arm, Connecting Linkage for Water Pumping Windmills; Cast Parts, Finished and Unfinished; Blanks, GRI 2(a) Dear Sir:
Protests 5301-9-000340, 000359 - 000366; Gear Boxes; Parts of Gear Boxes; Agricultural Use Provisions; Actual Use; Declaration of Intent; Rotary Mowers; Irrigation Systems; Post Hole diggers; 19 CFR 10.133, 10.134,10.138, 177.9(d)(2), (d)(3); 9817.00.50
Protest 4115-94-100005; Automotive Components; Explanatory Notes 48.23, 84.21, 85.01, and 85.12; Chapter 39, Note 2(p); Chapter 90, Note 6; Section XVI, Notes 1(a) and 2; Section XVII, Notes 2(a) and (f); HQs 951279, 951976, and 954581; Intercargo Insurance Co., f/k/a International Cargo & Surety Co. (Surety for M.Genauer) v. U.S.; 3923.90.00; 3926.90.90; 4823.90.85; 5911.90.00; 7318.15.20; 7318.21.00; 7318.22.00; 7320.90.10; 8301.60.00; 8414.90.90; 8421.99.00; 8501.10.40; 8503.00.40; 8512.90.90; 8536.41.00; 9032.90.60
Application for Further Review of Protest No. 1703-20-103344; Classification of Automobile Bracket Lifts, Bracket Clamps, Bracket Cable Mountings, Backplate Assemblies, and Breather Assemblies.
The classification and country of origin of a pin and sleeve assembly
CHAIN SPROCKETS AND PARTS THEREOF
Census Bureau export classification matching this HTS import code.
