HS code 8533.31: Wirewound variable resistors, including rheostats and potentiometers, for a power handling capacity not exceeding 20 W
Last updated
Key facts
- HS code
- 8533.31
- Covers
- Wirewound variable resistors, including rheostats and potentiometers, for a power handling capacity not exceeding 20 W
- Heading
- 85.33: Electrical resistors (including rheostats and potentiometers), other than heating resistors
- Edition
- HS2022
- Duty in the United States
- See its 1 line
Summary
HS code 8533.31 covers wirewound variable resistors, including rheostats and potentiometers, for a power handling capacity not exceeding 20 W. It sits in heading 85.33 (electrical resistors (including rheostats and potentiometers), other than heating resistors) in chapter 85 (electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles). Other goods of heading 85.33 are classified under 8533.10 (fixed carbon resistors, composition or film types), 8533.21 (other fixed resistors, for a power handling capacity not exceeding 20 W), 8533.29 (other fixed resistors, other), 8533.39 (wirewound variable resistors, including rheostats and potentiometers, other) or 2 others. National tariff lines under 8533.31 are live on border.bot for the United States (1 line, also used by 1 other country).
What this code covers
HS code 8533.31 covers wirewound variable resistors, including rheostats and potentiometers, for a power handling capacity not exceeding 20 W.
The legal text of the subheading is “Wirewound variable resistors, including rheostats and potentiometers: For a power handling capacity not exceeding 20 W”, read under “Wirewound variable resistors, including rheostats and potentiometers”, in HS2022.
What it doesn’t cover
Other goods of heading 85.33 are classified under 8533.10 (fixed carbon resistors, composition or film types), 8533.21 (other fixed resistors, for a power handling capacity not exceeding 20 W), 8533.29 (other fixed resistors, other), 8533.39 (wirewound variable resistors, including rheostats and potentiometers, other) or 2 others.
- 8533.10Fixed carbon resistors, composition or film types
- 8533.21Other fixed resistors: For a power handling capacity not exceeding 20 W
- 8533.29Other fixed resistors: Other
- 8533.39Wirewound variable resistors, including rheostats and potentiometers: Other
- 8533.40Other variable resistors, including rheostats and potentiometers
- 8533.90Parts
How it is structured
8533.31 is a six-digit subheading. Its first two digits, 85, are the chapter; the first four, 8533, are heading 85.33; the last two, 31, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Heading 85.33
- Electrical resistors (including rheostats and potentiometers), other than heating resistors
- Within the heading
- Wirewound variable resistors, including rheostats and potentiometers
- Subheading 8533.31
- For a power handling capacity not exceeding 20 W
In other countries
National tariff lines under 8533.31 are live on border.bot for the United States (1 line, also used by 1 other country).
- United States1 line, used by 1 other country
Frequently asked questions
What does HS code 8533.31 cover?
HS code 8533.31 covers wirewound variable resistors, including rheostats and potentiometers, for a power handling capacity not exceeding 20 W.
Which heading and chapter is HS code 8533.31 in?
HS code 8533.31 is in heading 85.33 (electrical resistors (including rheostats and potentiometers), other than heating resistors) in chapter 85 (electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles).
Where are goods of heading 85.33 classified when 8533.31 doesn’t fit?
Other goods of heading 85.33 are classified under 8533.10 (fixed carbon resistors, composition or film types), 8533.21 (other fixed resistors, for a power handling capacity not exceeding 20 W), 8533.29 (other fixed resistors, other), 8533.39 (wirewound variable resistors, including rheostats and potentiometers, other) or 2 others.
Which countries’ tariffs list national lines under HS code 8533.31?
National tariff lines under 8533.31 are live on border.bot for the United States (1 line, 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.