# HS code 8431.49: Parts suitable for use solely or principally with the machinery of headings 84.25 to 84.30, of machinery of heading 8426, 8429 or 8430

> HS code 8431.49 covers parts suitable for use solely or principally with the machinery of headings 84.25 to 84.30, of machinery of heading 8426, 8429 or 8430, other than those classified in 8431.41, 8431.42 and 8431.43. It sits in heading 84.31 (parts suitable for use solely or principally with the machinery of headings 84.25 to 84.30) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof). Other goods of heading 84.31 are classified under 8431.10 (of machinery of heading 84.25), 8431.20 (of machinery of heading 84.27), 8431.31 (of machinery of heading 8428, of lifts, skip hoists or escalators), 8431.39 (of machinery of heading 8428, other) or 3 others. National tariff lines under 8431.49 are live on border.bot for the United States (24 lines, also used by 1 other country).

Source: https://border.bot/hs-codes/843149
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 84](https://border.bot/hs-codes/84) / [84.31](https://border.bot/hs-codes/8431) / [8431.49](https://border.bot/hs-codes/843149)

## Key facts

- HS code: 8431.49
- Covers: Parts suitable for use solely or principally with the machinery of headings 84.25 to 84.30, of machinery of heading 8426, 8429 or 8430
- Heading: [84.31: Parts suitable for use solely or principally with the machinery of headings 84.25 to 84.30](https://border.bot/hs-codes/8431)
- Chapter: [84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof](https://border.bot/hs-codes/84)
- Edition: HS2022
- Duty in the United States: [See its 24 lines](https://border.bot/countries/united-states/hs-codes/843149)

## What this code covers

HS code 8431.49 covers parts suitable for use solely or principally with the machinery of headings 84.25 to 84.30, of machinery of heading 8426, 8429 or 8430, other than those classified in 8431.41, 8431.42 and 8431.43.

The legal text of the subheading is “Of machinery of heading 8426, 8429 or 8430: Other”, read under “Of machinery of heading 8426, 8429 or 8430”, in HS2022.

## What it doesn’t cover

Other goods of heading 84.31 are classified under 8431.10 (of machinery of heading 84.25), 8431.20 (of machinery of heading 84.27), 8431.31 (of machinery of heading 8428, of lifts, skip hoists or escalators), 8431.39 (of machinery of heading 8428, other) or 3 others.

- [8431.10](https://border.bot/hs-codes/843110) Of machinery of heading 84.25
- [8431.20](https://border.bot/hs-codes/843120) Of machinery of heading 84.27
- [8431.31](https://border.bot/hs-codes/843131) Of machinery of heading 8428: Of lifts, skip hoists or escalators
- [8431.39](https://border.bot/hs-codes/843139) Of machinery of heading 8428: Other
- [8431.41](https://border.bot/hs-codes/843141) Of machinery of heading 8426, 8429 or 8430: Buckets, shovels, grabs and grips
- [8431.42](https://border.bot/hs-codes/843142) Of machinery of heading 8426, 8429 or 8430: Bulldozer or angledozer blades
- [8431.43](https://border.bot/hs-codes/843143) Of machinery of heading 8426, 8429 or 8430: Parts for boring or sinking machinery of subheading 8430 41 or 8430 49

## How it is structured

8431.49 is a six-digit subheading. Its first two digits, 84, are the chapter; the first four, 8431, are heading 84.31; the last two, 49, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
- Heading 84.31: Parts suitable for use solely or principally with the machinery of headings 84.25 to 84.30
- Within the heading: Of machinery of heading 8426, 8429 or 8430
- Subheading 8431.49: Other

## In other countries

National tariff lines under 8431.49 are live on border.bot for the United States (24 lines, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/843149): 24 lines, used by 1 other country

- Previous subheading: [8431.43](https://border.bot/hs-codes/843143) Of machinery of heading 8426, 8429 or 8430: Parts for boring or sinking machinery of subheading 8430 41 or 8430 49
- Next subheading: [8432.10](https://border.bot/hs-codes/843210) Ploughs

## Frequently asked questions

### What does HS code 8431.49 cover?

HS code 8431.49 covers parts suitable for use solely or principally with the machinery of headings 84.25 to 84.30, of machinery of heading 8426, 8429 or 8430, other than those classified in 8431.41, 8431.42 and 8431.43.

### Which heading and chapter is HS code 8431.49 in?

HS code 8431.49 is in heading 84.31 (parts suitable for use solely or principally with the machinery of headings 84.25 to 84.30) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof).

### Where are goods of heading 84.31 classified when 8431.49 doesn’t fit?

Other goods of heading 84.31 are classified under 8431.10 (of machinery of heading 84.25), 8431.20 (of machinery of heading 84.27), 8431.31 (of machinery of heading 8428, of lifts, skip hoists or escalators), 8431.39 (of machinery of heading 8428, other) or 3 others.

### Which countries’ tariffs list national lines under HS code 8431.49?

National tariff lines under 8431.49 are live on border.bot for the United States (24 lines, also used by 1 other country).

## Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Machine-readable: https://border.bot/hs-codes/843149.json