# HS code 8455.90: Other parts

> HS code 8455.90 covers other parts. It sits in heading 84.55 (metal-rolling mills and rolls therefor) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof). Other goods of heading 84.55 are classified under 8455.10 (tube mills), 8455.21 (other rolling mills, hot or combination hot and cold), 8455.22 (other rolling mills, cold) or 8455.30 (rolls for rolling mills).

Source: https://staging.border.bot/hs-codes/845590
Last updated: 13 October 2026

[HS codes](https://staging.border.bot/hs-codes) / [Chapter 84](https://staging.border.bot/hs-codes/84) / [84.55](https://staging.border.bot/hs-codes/8455) / [8455.90](https://staging.border.bot/hs-codes/845590)

## Key facts

- HS code: 8455.90
- Covers: Other parts
- Heading: [84.55: Metal-rolling mills and rolls therefor](https://staging.border.bot/hs-codes/8455)
- Chapter: [84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof](https://staging.border.bot/hs-codes/84)
- Edition: HS2022
- Duty rates: [Set by each country’s tariff](https://staging.border.bot/countries)

## What this code covers

HS code 8455.90 covers other parts.

The legal text of the subheading is “Other parts”, in HS2022.

## What it doesn’t cover

Other goods of heading 84.55 are classified under 8455.10 (tube mills), 8455.21 (other rolling mills, hot or combination hot and cold), 8455.22 (other rolling mills, cold) or 8455.30 (rolls for rolling mills).

- [8455.10](https://staging.border.bot/hs-codes/845510) Tube mills
- [8455.21](https://staging.border.bot/hs-codes/845521) Other rolling mills: Hot or combination hot and cold
- [8455.22](https://staging.border.bot/hs-codes/845522) Other rolling mills: Cold
- [8455.30](https://staging.border.bot/hs-codes/845530) Rolls for rolling mills

## How it is structured

8455.90 is a six-digit subheading. Its first two digits, 84, are the chapter; the first four, 8455, are heading 84.55; the last two, 90, 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 84.55: Metal-rolling mills and rolls therefor
- Subheading 8455.90: Other parts

## In other countries

No national tariff lines under 8455.90 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 8455.90 at six digits and add their own digits after it.

- Previous subheading: [8455.30](https://staging.border.bot/hs-codes/845530) Rolls for rolling mills
- Next subheading: [8456.11](https://staging.border.bot/hs-codes/845611) Operated by laser or other light or photon beam processes: Operated by laser

## Frequently asked questions

### What does HS code 8455.90 cover?

HS code 8455.90 covers other parts.

### Which heading and chapter is HS code 8455.90 in?

HS code 8455.90 is in heading 84.55 (metal-rolling mills and rolls therefor) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof).

### Where are goods of heading 84.55 classified when 8455.90 doesn’t fit?

Other goods of heading 84.55 are classified under 8455.10 (tube mills), 8455.21 (other rolling mills, hot or combination hot and cold), 8455.22 (other rolling mills, cold) or 8455.30 (rolls for rolling mills).

## Sources and updates

The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.

This page was last updated on 13 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://staging.border.bot/hs-codes/845590.json