# United States tariff line 8406.90.50.00: Rotors, finished for final assembly

> In the United States tariff, line 8406.90.50.00 covers parts, rotors, finished for final assembly. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 8406.90 in heading 84.06 (chapter 84).

Source: https://border.bot/countries/united-states/hs-codes/8406905000
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 84](https://border.bot/countries/united-states/hs-codes/84) / [8406.90](https://border.bot/countries/united-states/hs-codes/840690) / [8406.90.50.00](https://border.bot/countries/united-states/hs-codes/8406905000)

## Key facts

- Tariff line: 8406.90.50.00
- Covers: Parts, rotors, finished for final assembly
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [8406.90](https://border.bot/hs-codes/840690)

## What this line covers

In the United States tariff, line 8406.90.50.00 covers parts, rotors, finished for final assembly.

Its legal text is “Rotors, finished for final assembly”, read under “Parts” and “Other”.

## How it is structured

It falls under HS subheading 8406.90 in heading 84.06 (chapter 84). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
- Heading 84.06: Steam turbines and other vapor turbines, and parts thereof
- Subheading 8406.90: Parts
- Within the subheading: Other
- Line 8406.90.50.00: Rotors, finished for final assembly

## Duty

Goods under this line enter free of general (MFN) duty.

## In other countries

No other national tariff on border.bot has live lines under 8406.90 yet.

- [The Harmonized System text for 8406.90](https://border.bot/hs-codes/840690)

## Other lines under 8406.90

- [8406.90.20.00](https://border.bot/countries/united-states/hs-codes/8406902000) Rotors, finished for final assembly
- [8406.90.30.00](https://border.bot/countries/united-states/hs-codes/8406903000) Rotors, not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery
- [8406.90.40.00](https://border.bot/countries/united-states/hs-codes/8406904000) Blades, rotating or stationary
- [8406.90.45.40](https://border.bot/countries/united-states/hs-codes/8406904540) Rotors or spindles and rotor or spindle assemblies
- [8406.90.45.80](https://border.bot/countries/united-states/hs-codes/8406904580) Other
- [8406.90.60.00](https://border.bot/countries/united-states/hs-codes/8406906000) Rotors, not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery
- [8406.90.70.00](https://border.bot/countries/united-states/hs-codes/8406907000) Blades, rotating or stationary
- [8406.90.75.00](https://border.bot/countries/united-states/hs-codes/8406907500) Other

- Previous line: [8406.90.45.80](https://border.bot/countries/united-states/hs-codes/8406904580) Other
- Next line: [8406.90.60.00](https://border.bot/countries/united-states/hs-codes/8406906000) Rotors, not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery

## Frequently asked questions

### What does tariff line 8406.90.50.00 cover in the United States tariff?

In the United States tariff, line 8406.90.50.00 covers parts, rotors, finished for final assembly.

### What is the general (MFN) duty on 8406.90.50.00 in the United States?

Goods under this line enter free of general (MFN) duty.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 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.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/8406905000.json