# United States tariff line 6904.10.00.10: Heat insulating

> In the United States tariff, line 6904.10.00.10 covers building bricks, solid bricks, heat insulating. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 6904.10 in heading 69.04 (chapter 69).

Source: https://border.bot/countries/united-states/hs-codes/6904100010
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 69](https://border.bot/countries/united-states/hs-codes/69) / [6904.10](https://border.bot/countries/united-states/hs-codes/690410) / [6904.10.00.10](https://border.bot/countries/united-states/hs-codes/6904100010)

## Key facts

- Tariff line: 6904.10.00.10
- Covers: Building bricks, solid bricks, heat insulating
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [6904.10](https://border.bot/hs-codes/690410)

## What this line covers

In the United States tariff, line 6904.10.00.10 covers building bricks, solid bricks, heat insulating.

Its legal text is “Heat insulating”, read under “Building bricks” and “Solid bricks”.

## How it is structured

It falls under HS subheading 6904.10 in heading 69.04 (chapter 69). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 69: Ceramic products
- Heading 69.04: Ceramic building bricks, flooring blocks, support or filler tiles and the like
- Subheading 6904.10: Building bricks
- Within the subheading: Solid bricks
- Line 6904.10.00.10: Heat insulating

## Duty

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

The rate is published on 6904.10.00.

## In other countries

No other national tariff on border.bot has live lines under 6904.10 yet.

- [The Harmonized System text for 6904.10](https://border.bot/hs-codes/690410)

## Other lines under 6904.10

- [6904.10.00.20](https://border.bot/countries/united-states/hs-codes/6904100020) Other
- [6904.10.00.30](https://border.bot/countries/united-states/hs-codes/6904100030) Heat insulating
- [6904.10.00.40](https://border.bot/countries/united-states/hs-codes/6904100040) Other

- Previous line: [6903.90.00.50](https://border.bot/countries/united-states/hs-codes/6903900050) Other
- Next line: [6904.10.00.20](https://border.bot/countries/united-states/hs-codes/6904100020) Other

## Frequently asked questions

### What does tariff line 6904.10.00.10 cover in the United States tariff?

In the United States tariff, line 6904.10.00.10 covers building bricks, solid bricks, heat insulating.

### What is the general (MFN) duty on 6904.10.00.10 in the United States?

Goods under this line enter free of general (MFN) duty. The rate is published on 6904.10.00.

## 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/6904100010.json