Key facts
- HS code
- 8437.90
- Covers
- Parts
- Edition
- HS2022
- Duty in the United States
- See its 2 lines
Summary
HS code 8437.90 covers parts. It sits in heading 84.37 (machines for cleaning, sorting or grading seed, grain or dried leguminous vegetables; machinery used in the milling industry or for the working of cereals or dried leguminous vegetables, other than farm-type machinery) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof). Other goods of heading 84.37 are classified under 8437.10 (machines for cleaning, sorting or grading seed, grain or dried leguminous vegetables) or 8437.80 (other machinery). National tariff lines under 8437.90 are live on border.bot for the United States (2 lines, also used by 1 other country).
What this code covers
HS code 8437.90 covers parts.
The legal text of the subheading is “Parts”, in HS2022.
What it doesn’t cover
Other goods of heading 84.37 are classified under 8437.10 (machines for cleaning, sorting or grading seed, grain or dried leguminous vegetables) or 8437.80 (other machinery).
How it is structured
8437.90 is a six-digit subheading. Its first two digits, 84, are the chapter; the first four, 8437, are heading 84.37; the last two, 90, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Subheading 8437.90
- Parts
In other countries
National tariff lines under 8437.90 are live on border.bot for the United States (2 lines, also used by 1 other country).
- United States2 lines, used by 1 other country
Frequently asked questions
What does HS code 8437.90 cover?
HS code 8437.90 covers parts.
Which heading and chapter is HS code 8437.90 in?
HS code 8437.90 is in heading 84.37 (machines for cleaning, sorting or grading seed, grain or dried leguminous vegetables; machinery used in the milling industry or for the working of cereals or dried leguminous vegetables, other than farm-type machinery) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof).
Where are goods of heading 84.37 classified when 8437.90 doesn’t fit?
Other goods of heading 84.37 are classified under 8437.10 (machines for cleaning, sorting or grading seed, grain or dried leguminous vegetables) or 8437.80 (other machinery).
Which countries’ tariffs list national lines under HS code 8437.90?
National tariff lines under 8437.90 are live on border.bot for the United States (2 lines, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 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.