# United States tariff line 8437.90.00.90: Other

> In the United States tariff, line 8437.90.00.90 covers parts. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 8437.90 in heading 84.37 (chapter 84).

Source: https://border.bot/countries/united-states/hs-codes/8437900090
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) / [8437.90](https://border.bot/countries/united-states/hs-codes/843790) / [8437.90.00.90](https://border.bot/countries/united-states/hs-codes/8437900090)

## Key facts

- Tariff line: 8437.90.00.90
- Covers: Parts
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [8437.90](https://border.bot/hs-codes/843790)

## What this line covers

In the United States tariff, line 8437.90.00.90 covers parts.

Its legal text is “Other”, read under “Parts”.

## How it is structured

It falls under HS subheading 8437.90 in heading 84.37 (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 84.37: Machines for cleaning, sorting or grading seed, grain or dried leguminous vegetables, and parts thereof; machinery used in the milling industry or for the working of cereals or dried leguminous vegetables, other than farm type machinery; parts thereof
- Subheading 8437.90: Parts
- Line 8437.90.00.90: Other

## Duty

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

The rate is published on 8437.90.00.

## In other countries

No other national tariff on border.bot has live lines under 8437.90 yet.

- [The Harmonized System text for 8437.90](https://border.bot/hs-codes/843790)

## Other lines under 8437.90

- [8437.90.00.10](https://border.bot/countries/united-states/hs-codes/8437900010) Of flour mill or grain mill machines

- Previous line: [8437.90.00.10](https://border.bot/countries/united-states/hs-codes/8437900010) Of flour mill or grain mill machines
- Next line: [8438.10.00.10](https://border.bot/countries/united-states/hs-codes/8438100010) Bakery machinery

## Frequently asked questions

### What does tariff line 8437.90.00.90 cover in the United States tariff?

In the United States tariff, line 8437.90.00.90 covers parts.

### What is the general (MFN) duty on 8437.90.00.90 in the United States?

Goods under this line enter free of general (MFN) duty. The rate is published on 8437.90.00.

## 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/8437900090.json