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HSChapter 84
U.S. imports of parts & accessories for stone, ceramic & glass working machine tools (heading 8464) (HS 846691) totaled $6.7M in April 2026, traded with 40 countries.
Importers of Parts & Accessories for Stone, Ceramic & Glass Working Machine Tools (Heading 8464) paid $772K in duties in April 2026 — an effective duty rate of 12% on $6.2M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataReplacement and aftermarket parts for machine tools that work stone, ceramics, concrete, asbestos-cement, and cold-worked glass enter under this subheading, with the US schedule distinguishing cast-iron parts (8466911000) from other parts (8466915000) and a legacy catch-all line (8466910000). Italy and Germany lead US supply, reflecting the concentration of stone-processing and ceramic-tile machinery manufacturing in those countries. Because asbestos-cement is explicitly referenced in the heading's scope, importers of parts for legacy equipment should be aware that EPA regulations govern asbestos-containing articles separately from customs classification. China is also a notable supplier, and those goods are subject to Section 301 tariffs.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Cast iron is singled out because it is a distinct material with its own duty treatment in many machine-tool parts categories. Beds, columns, and housings are frequently cast iron, while spindles, slides, and precision components are typically steel or other materials. Correctly identifying the material composition of each part is essential to selecting the right 10-digit line.
The wire saw itself (the cutting element) would typically classify as a tool or abrasive article under a different heading, while the machine frame, drive components, and structural parts of the saw machine would fall under 8466.91 as parts for heading 8464 machines. The distinction between the consumable cutting element and the durable machine part is the key classification boundary.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $280K | $16.1M | +$15.8M |
| TAIWAN | $616K | $6.8M | +$6.2M |
| CHINA | $575K | $2.2M | +$1.6M |
| KOREA, SOUTH | $9K | $2.3M | +$2.3M |
| ITALY | $1.4M | $335K | -$1.0M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8466915000 | PARTS FOR MACHINES OF HEADING 8464, NESOI | $6.6M | 12.28% | $764K |
| 8466911000 | CAS-IRON PARTS FOR MACHINES OF HEADING 8464 | $33K | 26.71% | $8K |
PARTS FOR MACHINES OF HEADING 8464, NESOI
CAS-IRON PARTS FOR MACHINES OF HEADING 8464
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8466910000 | PARTS FOR MACHINES OF HEADING 8464 | $34.2M |
PARTS FOR MACHINES OF HEADING 8464
23.5M no
DIGITAL PROCESSING UNITS, N.E.S.O.I.
HS 847150
PARTS & ACCESSORIES FOR ADP MACHINES & UNITS
HS 847330
PORT DIGTL AUTOMATIC DATA PROCESS MACH NOT > 10 KG
HS 847130
AUTOMATIC DATA PROCESSING STORAGE UNITS, N.E.S.O.I
HS 847170
AUTOMATIC DATA PROCESSING UNITS, N.E.S.O.I.
HS 847180
TURBOJET AND TURBOPROLLER PARTS
HS 841191
| Port | Imports | Exports | Balance |
|---|---|---|---|
| YSLETA, TX | -- | $15.4M | +$15.4M |
| CHICAGO, IL | $155K | $6.0M | +$5.8M |
| JFK INTERNATIONAL AIRPORT, NY | $180K | $3.4M | +$3.2M |