# HS code 8503.00: Parts suitable for use solely or principally with the machines of heading 85.01 or 85.02

> HS code 8503.00 covers parts suitable for use solely or principally with the machines of heading 85.01 or 85.02. It sits in heading 85.03 (parts suitable for use solely or principally with the machines of heading 85.01 or 85.02) in chapter 85 (electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles). It is the only subheading of heading 85.03, so every good of the heading is classified here. National tariff lines under 8503.00 are live on border.bot for the United States (11 lines, also used by 1 other country).

Source: https://border.bot/hs-codes/850300
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 85](https://border.bot/hs-codes/85) / [85.03](https://border.bot/hs-codes/8503) / [8503.00](https://border.bot/hs-codes/850300)

## Key facts

- HS code: 8503.00
- Covers: Parts suitable for use solely or principally with the machines of heading 85.01 or 85.02
- Heading: [85.03: Parts suitable for use solely or principally with the machines of heading 85.01 or 85.02](https://border.bot/hs-codes/8503)
- Chapter: [85: Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles](https://border.bot/hs-codes/85)
- Edition: HS2022
- Duty in the United States: [See its 11 lines](https://border.bot/countries/united-states/hs-codes/850300)

## What this code covers

HS code 8503.00 covers parts suitable for use solely or principally with the machines of heading 85.01 or 85.02.

The legal text of the subheading is “Parts suitable for use solely or principally with the machines of heading 85.01 or 85.02”, in HS2022.

## What it doesn’t cover

It is the only subheading of heading 85.03, so every good of the heading is classified here.

## How it is structured

8503.00 is a six-digit subheading. Its first two digits, 85, are the chapter; the first four, 8503, are heading 85.03; the last two, 00, identify the subheading within the heading.

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

- Chapter 85: Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles
- Heading 85.03: Parts suitable for use solely or principally with the machines of heading 85.01 or 85.02
- Subheading 8503.00: Parts suitable for use solely or principally with the machines of heading 85.01 or 85.02

## In other countries

National tariff lines under 8503.00 are live on border.bot for the United States (11 lines, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/850300): 11 lines, used by 1 other country

- Previous subheading: [8502.40](https://border.bot/hs-codes/850240) Electric rotary converters
- Next subheading: [8504.10](https://border.bot/hs-codes/850410) Ballasts for discharge lamps or tubes

## Frequently asked questions

### What does HS code 8503.00 cover?

HS code 8503.00 covers parts suitable for use solely or principally with the machines of heading 85.01 or 85.02.

### Which heading and chapter is HS code 8503.00 in?

HS code 8503.00 is in heading 85.03 (parts suitable for use solely or principally with the machines of heading 85.01 or 85.02) in chapter 85 (electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles).

### Where are goods of heading 85.03 classified when 8503.00 doesn’t fit?

8503.00 is the only subheading of heading 85.03, so every good of the heading is classified there.

### Which countries’ tariffs list national lines under HS code 8503.00?

National tariff lines under 8503.00 are live on border.bot for the United States (11 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/850300.json