# HS code 8410.90: Parts, including regulators

> HS code 8410.90 covers parts, including regulators. It sits in heading 84.10 (hydraulic turbines, water wheels, and regulators therefor) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof). Other goods of heading 84.10 are classified under 8410.11 (hydraulic turbines and water wheels, of a power not exceeding 1,000 kW), 8410.12 (hydraulic turbines and water wheels, of a power exceeding 1,000 kW but not exceeding 10,000 kW) and 8410.13 (hydraulic turbines and water wheels, of a power exceeding 10,000 kW).

Source: https://staging.border.bot/hs-codes/841090
Last updated: 13 October 2026

[HS codes](https://staging.border.bot/hs-codes) / [Chapter 84](https://staging.border.bot/hs-codes/84) / [84.10](https://staging.border.bot/hs-codes/8410) / [8410.90](https://staging.border.bot/hs-codes/841090)

## Key facts

- HS code: 8410.90
- Covers: Parts, including regulators
- Heading: [84.10: Hydraulic turbines, water wheels, and regulators therefor](https://staging.border.bot/hs-codes/8410)
- 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 8410.90 covers parts, including regulators.

The legal text of the subheading is “Parts, including regulators”, in HS2022.

## What it doesn’t cover

Other goods of heading 84.10 are classified under 8410.11 (hydraulic turbines and water wheels, of a power not exceeding 1,000 kW), 8410.12 (hydraulic turbines and water wheels, of a power exceeding 1,000 kW but not exceeding 10,000 kW) and 8410.13 (hydraulic turbines and water wheels, of a power exceeding 10,000 kW).

- [8410.11](https://staging.border.bot/hs-codes/841011) Hydraulic turbines and water wheels: Of a power not exceeding 1,000 kW
- [8410.12](https://staging.border.bot/hs-codes/841012) Hydraulic turbines and water wheels: Of a power exceeding 1,000 kW but not exceeding 10,000 kW
- [8410.13](https://staging.border.bot/hs-codes/841013) Hydraulic turbines and water wheels: Of a power exceeding 10,000 kW

## How it is structured

8410.90 is a six-digit subheading. Its first two digits, 84, are the chapter; the first four, 8410, are heading 84.10; 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 84.10: Hydraulic turbines, water wheels, and regulators therefor
- Subheading 8410.90: Parts, including regulators

## In other countries

No national tariff lines under 8410.90 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 8410.90 at six digits and add their own digits after it.

- Previous subheading: [8410.13](https://staging.border.bot/hs-codes/841013) Hydraulic turbines and water wheels: Of a power exceeding 10,000 kW
- Next subheading: [8411.11](https://staging.border.bot/hs-codes/841111) Turbojets: Of a thrust not exceeding 25 kN

## Frequently asked questions

### What does HS code 8410.90 cover?

HS code 8410.90 covers parts, including regulators.

### Which heading and chapter is HS code 8410.90 in?

HS code 8410.90 is in heading 84.10 (hydraulic turbines, water wheels, and regulators therefor) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof).

### Where are goods of heading 84.10 classified when 8410.90 doesn’t fit?

Other goods of heading 84.10 are classified under 8410.11 (hydraulic turbines and water wheels, of a power not exceeding 1,000 kW), 8410.12 (hydraulic turbines and water wheels, of a power exceeding 1,000 kW but not exceeding 10,000 kW) and 8410.13 (hydraulic turbines and water wheels, of a power exceeding 10,000 kW).

## 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/841090.json