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HTS 8431Chapter 84

HTS 8431Parts suitable for use solely or principally with the machinery of headings 8425 to 8430: Duty Rate & Import Guide

Nuclear Reactors, Boilers, Machinery · 10 court cases · $825.7M monthly imports · 100% from 1 countries · Updated daily from USITC

Duty Rates

General

Free

Special

Free

Column 2

Free

Trade Agreement Eligibility

CUSMAKORUS

Trade Intelligence

Monthly Imports

$825.7M

2026-01

Trade Concentration

100%

from top 3 of 1 origins

Regulatory Pressure

HIGH

0 rulings — · 0 reg · 8 CIT, 2 CAFC

Global Rates

🇺🇸 Free

🇬🇧 United Kingdom: N/A · 🇪🇺 European Union: N/A · 🇨🇦 Canada: N/A · 🇧🇷 Brazil: N/A

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Data compiled from USITC HTS, US Census Bureau, CourtListener · As of 2026-04-28 · Updates monthly

Regulatory Pressure

This code has elevated regulatory activity — 0 CBP rulings (0 in last 2 years, trend: stable), 0 pending Federal Register actions, and 10 CIT/CAFC cases.

Supply Chain Risk

100% of US imports for this code come from just 1 countries. High origin concentration increases exposure to trade disruptions or tariff escalations.

High-Volume Code

This is a high-volume import code — $826M in monthly US imports. Duty rate changes or trade remedy actions on this code have significant economic impact.

Trade Remedy

Additional Tariffs Apply

Section 301 — China Tariffs+25%

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 →

Subheadings (53)

CodeDescriptionRate
8431.10.00Of machinery of heading 8425Free
8431.10.00.10Of machinery of subheading 8425.11 or 8425.19
8431.10.00.90Other
8431.20.00.00Of machinery of heading 8427Free
8431.31.00Of passenger or freight elevators other than continuous action, skip hoists or escalatorsFree
8431.31.00.20Of skip hoists
8431.31.00.40Of escalators
8431.31.00.60Other
8431.39.00OtherFree
8431.39.00.10Of elevators and conveyors
8431.39.00.50Of oil and gas field machinery
8431.39.00.70Of the woodland log handling equipment of statistical reporting number 8428.90.0310
8431.39.00.80Other
8431.41.00Buckets, shovels, grabs and gripsFree
8431.41.00.20Shovel attachments
8431.41.00.40Clamshell (grappler) attachments
8431.41.00.60Dragline buckets
8431.41.00.80Other
8431.42.00.00Bulldozer or angledozer bladesFree
8431.43Parts for boring or sinking machinery of subheading 8430.41 or 8430.49:
8431.43.40.00Of offshore oil and natural gas drilling and production platformsFree
8431.43.80OtherFree
8431.43.80.20Tool joints, whether or not forged
8431.43.80.40Drill pipe fitted with tool joints
8431.43.80.60Other
8431.43.80.90Of other boring or sinking machinery
8431.49Other:
8431.49.10Of machinery of heading 8426Free
8431.49.10.10Of machinery of subheadings 8426.11, 8426.19 and 8426.30
8431.49.10.60Of mobile lifting frames, straddle carriers and works trucks fitted with a crane
8431.49.10.70Of copper or copper alloys
8431.49.10.80Other
8431.49.90OtherFree
8431.49.90.05Backhoe attachments
8431.49.90.10Front-end loader attachments
8431.49.90.15Rippers and rooters
8431.49.90.20Other
8431.49.90.25Cast axle housings
8431.49.90.32Of copper or copper alloys
8431.49.90.34Other
8431.49.90.35Cast axle housings
8431.49.90.36Road wheels
8431.49.90.38Wheel and tire assemblies
8431.49.90.39Of copper or copper alloys
8431.49.90.41Other
8431.49.90.45Scraper bowls for scrapers of subheadings 8429.30 and 8430.69.01
8431.49.90.50Track links
8431.49.90.55Cast axle housings
8431.49.90.81Steel forgings
8431.49.90.84Road wheels
8431.49.90.90Wheel and tire assemblies
8431.49.90.92Of copper or copper alloys
8431.49.90.94Other

Court of International Trade & Federal Circuit (10)

View all 10+ cases on PACER →

Matching Export Code (Schedule B)

8431100010Schedule B

PARTS OF PULLEY TACKLE AND HOISTS OTHER THAN SKIP HOISTS OR HOISTS OF A KIND USED FOR RAISING VEHICLES

Census Bureau export classification matching this HTS import code.

8420.99.90.008431.10.00