# United States tariff lines under HS 8417.90

> The United States tariff splits HS 8417.90 (parts) into 1 national line: 8417.90.00.00 (parts). The general (MFN) duty is 3.9% on this line.

Source: https://border.bot/countries/united-states/hs-codes/841790
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) / [8417.90](https://border.bot/countries/united-states/hs-codes/841790)

## Key facts

- HS subheading: [8417.90](https://border.bot/hs-codes/841790)
- Duty (MFN): 3.9%
- National lines: 1
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

## United States lines under 8417.90

The United States tariff splits HS 8417.90 (parts) into 1 national line: 8417.90.00.00 (parts).

The general (MFN) duty is 3.9% on this line.

- [8417.90.00.00](https://border.bot/countries/united-states/hs-codes/8417900000) Parts. Duty (MFN): 3.9%

## In other countries

No other national tariff on border.bot has live lines under 8417.90 yet.

- [The Harmonized System text for 8417.90](https://border.bot/hs-codes/841790)

- Previous subheading: [8417.80](https://border.bot/countries/united-states/hs-codes/841780) Industrial or laboratory furnaces and ovens, including incinerators, nonelectric, and parts thereof
- Next subheading: [8418.10](https://border.bot/countries/united-states/hs-codes/841810) Refrigerators, freezers and other refrigerating or freezing equipment, electric or other; heat pumps, other than the air conditioning machines of heading 8415; parts thereof

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 8417.90?

The United States tariff splits HS 8417.90 (parts) into 1 national line: 8417.90.00.00 (parts).

### What is the duty on HS 8417.90 in the United States?

The general (MFN) duty is 3.9% on this line.

## 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/841790.json