Harmonized System
U.S. exports of parts for electrical circuit apparatus and control or distribution boards (nesoi) (HS 853890) totaled $703.8M in August 2026.
Importers of Parts for Electrical Circuit Apparatus and Control or Distribution Boards (NESOI) paid $47.2M in duties in August 2026, an effective tariff rate of 10.97% of the $430.4M imported — duty actually collected as a share of that value, not the published tariff schedule.
Last updated: August 2026 dataPrinted circuit assemblies, molded parts, electrical metal contacts, automatic circuit breaker parts, and switchgear parts for apparatus in headings 8535, 8536, and 8537 all fall within this broad parts heading. The US schedule is highly detailed, with twelve 10-digit lines that distinguish printed circuit assemblies (8538901000, 8538903000), non-PC assemblies (8538904000), molded parts (8538906000), circuit breaker parts (8538907020/8538908120), metal contacts (8538907040/8538908140), and switchgear parts (8538907060/8538908160), among others. Mexico leads import supply, with China and Germany also significant — and Chinese-origin goods are subject to Section 301 tariffs. Correct classification requires identifying both the part type and the specific parent apparatus heading (8535, 8536, or 8537) for which the part is suitable.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
35.4K shipments/mo
Parts that are solely or principally suitable for use with apparatus in headings 8535, 8536, or 8537 classify under 8538 per the General Rules of Interpretation and the relevant chapter notes. If a part is equally suitable for apparatus in multiple headings, the importer should identify the primary intended use. Parts with broader applicability — such as generic fasteners or standard electronic components — may classify elsewhere under their own headings.
CBP may request technical datasheets confirming the contact material (typically silver, gold, or copper alloy), contact geometry, and the specific apparatus (circuit breaker, relay, contactor) for which the contacts are designed. A supplier declaration or engineering specification linking the contacts to apparatus in headings 8535–8537 strengthens the classification position and reduces the risk of reclassification to a base-metal parts heading.
HSChapter 85
Trade Directory
List your company under HS 853890 — Parts for Electrical Circuit Apparatus and Control or Distribution Boards (NESOI), so the companies trading it can find you. Be the first supplier listed.
Subheading 1 of 2 in heading 8538
Subheading 853890 · $703.8M of $728.8M
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 |
|---|---|---|---|---|---|
| 8538908180 | Parts for Use With Apps in 8535,8536 or 8537,NESOI | $180.9M | 10.80% | 71.36% | $19.5M |
| 8538908120 | Automatic Circuit Breaker Parts | $60.3M | 14.12% | 87.82% | $8.5M |
| 8538903000 | Pc Assemblies, For Use W. Head 8535-37, NESOI | $57.9M | 9.66% | 58.10% | $5.6M |
| 8538906000 | Molded Pts Suit for Use With Apt in 8535,8536,8537 | $56.6M | 8.69% | 51.12% | $4.9M |
| 8538908140 | Electrical Metal Contacts for Heading 8535, 36, 37 | $31.8M | 13.56% | 65.90% | $4.3M |
| 8538908160 | Switchgear Parts, For Hd 8535,36,37, NESOI | $26.8M | 9.06% | 67.03% | $2.4M |
| 8538901000 | Printd Circuit Assmblies of 8537 U.S Note 12 Ch 85 | $15.2M | 11.85% | 81.61% | $1.8M |
| 8538904000 | Assmb O/T Pc for 8535.90.40,8536.30.40,8536.50.40 | $928K | 10.92% | 79.78% | $101K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
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.
ImportsExports
Imports
$430.4MYoY · free account
Exports
$703.8MYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $4.5B of Parts for Electrical Circuit Apparatus and Control or Distribution Boards (NESOI).
Through August 2026. Source: U.S. Census Bureau.
Exports · August 2026
destination
Mexico and Canada together take 73% of it.
customs district
origin
entry
rate provision · imports
27.4% enters free of duty; duty collected equals 10.97% of total import value.