# United States tariff lines under HS 8477.90

> The United States tariff splits HS 8477.90 (parts) into 9 national lines: 8477.90.25.40 (of machines of subheading 8477.10.30, 8477.10.40 or 8477.10.90), 8477.90.25.80 (other), 8477.90.45.01 (barrel screws), 8477.90.65.00 (hydraulic assemblies incorporating more than one of the following: manifold; valves; pump; oil cooler) and 5 others. The general (MFN) duty is 3.1% on all 9 lines.

Source: https://border.bot/countries/united-states/hs-codes/847790
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) / [8477.90](https://border.bot/countries/united-states/hs-codes/847790)

## Key facts

- HS subheading: [8477.90](https://border.bot/hs-codes/847790)
- Duty (MFN): 3.1%
- National lines: 9
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

## United States lines under 8477.90

The United States tariff splits HS 8477.90 (parts) into 9 national lines: 8477.90.25.40 (of machines of subheading 8477.10.30, 8477.10.40 or 8477.10.90), 8477.90.25.80 (other), 8477.90.45.01 (barrel screws), 8477.90.65.00 (hydraulic assemblies incorporating more than one of the following: manifold; valves; pump; oil cooler) and 5 others.

The general (MFN) duty is 3.1% on all 9 lines.

- [8477.90.25.40](https://border.bot/countries/united-states/hs-codes/8477902540) Parts, Base, bed, platen, clamp cylinder, ram, and injection castings, weldments and fabrications, Of machines of subheading 8477.10.30, 8477.10.40 or 8477.10.90. Duty (MFN): 3.1%
- [8477.90.25.80](https://border.bot/countries/united-states/hs-codes/8477902580) Parts, Base, bed, platen, clamp cylinder, ram, and injection castings, weldments and fabrications, Other. Duty (MFN): 3.1%
- [8477.90.45.01](https://border.bot/countries/united-states/hs-codes/8477904501) Parts, Barrel screws. Duty (MFN): 3.1%
- [8477.90.65.00](https://border.bot/countries/united-states/hs-codes/8477906500) Parts, Hydraulic assemblies incorporating more than one of the following: manifold; valves; pump; oil cooler. Duty (MFN): 3.1%
- [8477.90.86.01](https://border.bot/countries/united-states/hs-codes/8477908601) Parts, Other, Of injection-molding machines. Duty (MFN): 3.1%
- [8477.90.86.20](https://border.bot/countries/united-states/hs-codes/8477908620) Parts, Other, Of extruders. Duty (MFN): 3.1%
- [8477.90.86.30](https://border.bot/countries/united-states/hs-codes/8477908630) Parts, Other, Of blow-molding machines. Duty (MFN): 3.1%
- [8477.90.86.40](https://border.bot/countries/united-states/hs-codes/8477908640) Parts, Other, Of machines for forming pneumatic tires. Duty (MFN): 3.1%
- [8477.90.86.95](https://border.bot/countries/united-states/hs-codes/8477908695) Parts, Other, Other parts. Duty (MFN): 3.1%

## In other countries

No other national tariff on border.bot has live lines under 8477.90 yet.

- [The Harmonized System text for 8477.90](https://border.bot/hs-codes/847790)

- Previous subheading: [8477.80](https://border.bot/countries/united-states/hs-codes/847780) Machinery for working rubber or plastics or for the manufacture of products from these materials, not specified or included elsewhere in this chapter; parts thereof
- Next subheading: [8478.10](https://border.bot/countries/united-states/hs-codes/847810) Machinery for preparing or making up tobacco, not specified or included elsewhere in this chapter; parts thereof

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 8477.90?

The United States tariff splits HS 8477.90 (parts) into 9 national lines: 8477.90.25.40 (of machines of subheading 8477.10.30, 8477.10.40 or 8477.10.90), 8477.90.25.80 (other), 8477.90.45.01 (barrel screws), 8477.90.65.00 (hydraulic assemblies incorporating more than one of the following: manifold; valves; pump; oil cooler) and 5 others.

### What is the duty on HS 8477.90 in the United States?

The general (MFN) duty is 3.1% on all 9 lines.

## 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/847790.json