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HSChapter 85
U.S. exports of parts for electrical resistors, rheostats & potentiometers (HS 853390) totaled $4.5M in July 2026.
Importers of Parts for Electrical Resistors, Rheostats & Potentiometers paid $160K in duties in July 2026 — an effective duty rate of 13% on $1.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Parts for Electrical Resistors, Rheostats & Potentiometers imports of $2.7M in July 2026 ran 11% below the year-to-date monthly average of $3.0M.
Last updated: July 2026 dataDedicated parts for resistors, rheostats, and potentiometers — including ceramic and metal composite substrates, resistance elements, and mechanical assemblies — are classified here rather than with the finished devices. The three 10-digit lines distinguish general electric resistor parts (8533900000), variable resistor parts made of ceramic or metal materials (8533904000), and all other electric resistor parts (8533908000). Mexico leads US import supply, consistent with its role as a major assembly hub for finished resistors, where component parts flow across the border as inputs to manufacturing.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
315 shipments/mo
A part must be identifiable as exclusively or principally used in the construction or repair of a resistor, rheostat, or potentiometer — for example, a bare resistance element, a ceramic winding form, or a mechanical shaft assembly. Finished resistors with all functional elements present are classified under the appropriate finished-goods heading (853310–853340), not here. Importers should be prepared to provide technical documentation showing the article's intended use as a component.
The US schedule provides a separate 10-digit line (8533904000) for variable resistor parts of ceramic or metal materials, which may carry a different duty rate than the general parts line (8533908000). Importers should verify the applicable rate for each line at the time of entry, as rates can differ and are subject to change.
Subheading 4 of 7 in heading 8533
Subheading 853390 · $2.7M of $92.0M
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ImportsExports
Imports
$2.7MYoY · Pro
Exports
$4.5MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8533908000 | Electric Resistor Parts, NESOI | $2.4M | 5.40% | 42.13% | $132K |
| 8533904000 | Variable Resistor Parts of Ceram/Mtl Matrls | $224K | 12.45% | 75.80% | $28K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8533900000 | Electric Resistor Parts | $4.5M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · July 2026
destination
Mexico and Israel together take 61% of it.
customs district
origin
entry
rate provision · imports
54.8% enters free of duty; the effective duty rate is 5.99%.