# United States tariff lines under HS 8419.40

> The United States tariff splits HS 8419.40 (distilling or rectifying plant) into 2 national lines: 8419.40.00.10 (rotary evaporators) and 8419.40.00.90 (other). Every United States line under 8419.40 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/841940
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) / [8419.40](https://border.bot/countries/united-states/hs-codes/841940)

## Key facts

- HS subheading: [8419.40](https://border.bot/hs-codes/841940)
- Duty (MFN): Free
- National lines: 2
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

## United States lines under 8419.40

The United States tariff splits HS 8419.40 (distilling or rectifying plant) into 2 national lines: 8419.40.00.10 (rotary evaporators) and 8419.40.00.90 (other).

Every United States line under 8419.40 is free of general (MFN) duty.

- [8419.40.00.10](https://border.bot/countries/united-states/hs-codes/8419400010) Distilling or rectifying plant, Rotary evaporators. Duty (MFN): free
- [8419.40.00.90](https://border.bot/countries/united-states/hs-codes/8419400090) Distilling or rectifying plant, Other. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 8419.40 yet.

- [The Harmonized System text for 8419.40](https://border.bot/hs-codes/841940)

- Previous subheading: [8419.39](https://border.bot/countries/united-states/hs-codes/841939) Machinery, plant or laboratory equipment, whether or not electrically heated (excluding furnaces, ovens and other equipment of heading 8514), for the treatment of materials by a process involving a change of temperature such as heating, cooking, roasting, distilling, rectifying, sterilizing, pasteurizing, steaming, drying, evaporating, vaporizing, condensing or cooling, other than machinery or plant of a kind used for domestic purposes; instantaneous or storage water heaters, nonelectric; parts thereof
- Next subheading: [8419.50](https://border.bot/countries/united-states/hs-codes/841950) Heat exchange units

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 8419.40?

The United States tariff splits HS 8419.40 (distilling or rectifying plant) into 2 national lines: 8419.40.00.10 (rotary evaporators) and 8419.40.00.90 (other).

### What is the duty on HS 8419.40 in the United States?

Every United States line under 8419.40 is 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/841940.json