HS Heading 8431 : Parts suitable for use solely or principally with the machinery of headings 8425 to 8430
HEADING DEFINITION & DISAMBIGUATION
HS Heading 8431 encompasses parts suitable for use solely or principally with the machinery of headings 8425 to 8430. It classifies 8 6-digit WCO subheadings within Chapter 84 under the Harmonized System [USITC HTS 2026].
Subheadings Under Heading 8431
| HS Code | WCO 6-Digit Subheading Description | Chapter | Operational Package |
|---|---|---|---|
| 8431.10 | Of machinery of heading 8425 | 84 | View 8431.10 Package → |
| 8431.20 | Of machinery of heading 8427 | 84 | View 8431.20 Package → |
| 8431.31 | Of machinery of heading 8428, Of passenger or freight elevators other than continuous action, skip hoists or escalators | 84 | View 8431.31 Package → |
| 8431.39 | Of machinery of heading 8428, Other | 84 | View 8431.39 Package → |
| 8431.41 | Of machinery of heading 8426, 8429 or 8430, Buckets, shovels, grabs and grips | 84 | View 8431.41 Package → |
| 8431.42 | Of machinery of heading 8426, 8429 or 8430, Bulldozer or angledozer blades | 84 | View 8431.42 Package → |
| 8431.43 | Of machinery of heading 8426, 8429 or 8430, Parts for boring or sinking machinery of subheading 8430.41 or 8430.49 | 84 | View 8431.43 Package → |
| 8431.49 | Of machinery of heading 8426, 8429 or 8430, Other | 84 | View 8431.49 Package → |
DISAMBIGUATION & CLASSIFICATION GUIDE
How to Select the Correct Subheading Under Heading 8431
Commercial shipments must be declared under the exact 6-digit WCO subheading that matches physical, chemical, or processing characteristics. Review the subheading descriptions above and verify against binding CBP CROSS rulings prior to entry filing.
Official Primary Sources & Authority References
USITC HTS Heading 8431 ↗
United States International Trade Commission official Harmonized Tariff Schedule.
CBP CROSS Rulings ↗
CBP e-Rulings database for Heading 8431 precedent rulings.
WCO Nomenclature ↗
World Customs Organization Harmonized System 2022 nomenclature standard.
U.S. Census Foreign Trade ↗
U.S. Census Bureau HTS-to-NAICS concordance and Schedule B export database.
Heading 8431 Frequently Asked Questions (FAQ)
What commercial articles are grouped under HS Heading 8431?
HS Heading 8431 covers Parts suitable for use solely or principally with the machinery of headings 8425 to 8430, grouping 8 6-digit WCO subheadings.
How are 6-digit subheadings structured under Heading 8431?
Subheadings under Heading 8431 range from 8431.11 to 8431.90, classifying goods by processing state, origin, or material composition.
What is the representative US import duty rate for Heading 8431?
US MFN general duty rates for Heading 8431 commodities range from Duty-Free up to representative ad valorem percentages under the 2026 US HTS.
Are Section 301 tariffs applicable to goods under Heading 8431?
Section 301 additional tariffs depend on the specific 8-digit or 10-digit US HTS code and country of origin (e.g. China Lists 1–4A).
What PGA message set flags apply to Heading 8431?
Partner Government Agency flags (FDA, USDA APHIS, EPA) apply depending on the specific commodity sub-classification.
How do I distinguish between subheadings under Heading 8431?
Review WCO subheading terms and candidate descriptions. For example, unroasted vs. roasted or decaffeinated vs. non-decaffeinated.
Can goods under Heading 8431 enter duty-free under USMCA?
Yes. Goods originating in USMCA territories (US, Mexico, Canada) enter duty-free under SPI code P with a valid Certificate of Origin.
What is the Section 321 de minimis limit for Heading 8431?
Eligible import shipments valued at $800 USD or less imported by one person on one day enter duty-free under 19 U.S.C. 1321.
What documents are required for formal customs entry of Heading 8431?
Commercial Invoice, Packing List, Bill of Lading, and CBP Form 7501 are mandatory for entries exceeding $2,500 USD.
How can an importer get a binding CBP classification ruling for Heading 8431?
Importers may apply for a binding ruling via CBP National Commodity Specialist Division under 19 CFR Part 177.