Product classification
HS code for Glass machine accessories: 8466.91
Parts & accessories suited for use solely/principally, for the machines of heading no. 8464, n.e.c. in heading no. 8466.
Classification of glass machine accessories under HS 8466.91
HS code 8466.91 is designated for parts and accessories suited for use solely or principally with the machines of heading 8464. Heading 8464 includes machine tools for working stone, ceramics, concrete, asbestos-cement, or similar mineral materials, or for cold working glass. Therefore, any specialized accessory—such as a work holder, tool attachment, or precision guide—that is essential for the operation of a glass-working machine is classified here. The classification is governed by Note 2 to Section XVI of the Harmonized System, which dictates that parts of machines are to be classified according to specific rules: if the part is not a machine itself covered by a specific heading, and it is uniquely designed for a machine in heading 8464, it must be placed in 8466. This ensures that the technical ecosystem of glass-working machinery is maintained within a logical tariff structure. This code is vital for manufacturers of glass-cutting, grinding, and polishing equipment who need to import or export replacement components and auxiliary attachments.
- Covers
- Work holders for glass grinding machines
- Tool holders for glass cutting equipment
- Dividing heads for glass engraving machinery
- Specialized jigs for glass edge polishing
- Mechanical attachments for glass drilling machines
- Also under 8466.91
- Husqvarna K-series parts
- Tyrolit grinding machine accessories
- Makita stone cutter parts
- Bosch diamond tool accessories
- Montresor glass processing machine parts
Codes often confused with 8466.91
Common mistake. Common misclassifications involve HS code 8475, which covers machines for assembling electric or electronic lamps or for manufacturing glassware in the hot state. Accessories for those machines belong under 8475.90. Additionally, general-purpose parts like ball bearings or drive belts are classified in their own specific headings (e.g., 8482 or 4010) rather than 8466.91, even if they are used on a glass machine. Confusion also arises with 8207, which covers interchangeable tools for hand tools or machine tools; 8466 is for the accessory that holds the tool, not the cutting tool itself.
Top exporters and importers of HS 846691 (the code used for glass machine accessories), 2025
In 2025, the largest exporter of HS 846691 (the code used for glass machine accessories) in UN Comtrade data was the United States, with 31% of world exports; the largest importer in UN Comtrade data was Taiwan, with about 12% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 846691, not only glass machine accessories.
Top exporters 2025 · share of world exports
- 1 United States $263M 31% of world exports
- 2 Italy $128M 15% of world exports
- 3 China $96M 11% of world exports
World total: $861M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Taiwan* ~$88M 12% of world imports · partner records ↗
- 2 United States $78M 11% of world imports
- 3 Germany $52M 7.1% of world imports
World total: $729M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for glass machine accessories
Brazil classifies glass machine accessories under NCM 8466.91.00: HS 8466.91 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about glass machine accessories
What is the HS code for Glass machine accessories?
The HS code for Glass machine accessories is 846691 (Parts & accessories suited for use solely/principally; for the machines of heading no. 8464, n.e.c. in heading no. 8466). The correct HS code for accessories for glass-working machine tools is 8466.91.
How do I classify Glass machine accessories for customs?
Glass machine accessories is classified under HS code 846691 — Parts & accessories suited for use solely/principally; for the machines of heading no. 8464, n.e.c. in heading no. 8466. This is a 6-digit subheading level code.
Does this include the glass-cutting blades?
No, interchangeable cutting blades or diamond tips are usually classified under heading 8207 as tools.
Which countries are the top exporters of glass machine accessories (HS 846691)?
In 2025, the top exporters of HS 846691 (the code used for glass machine accessories) in UN Comtrade data were the United States ($263M, 31% of world exports), Italy ($128M) and China ($96M). World exports came to about $861M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of glass machine accessories (HS 846691)?
In 2025, the top importers of HS 846691 (the code used for glass machine accessories) in UN Comtrade data were Taiwan (about $88M, 12% of world imports), the United States ($78M) and Germany ($52M). World imports came to about $729M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Glass machine accessories the same in all countries?
The base HS code 846691 for Glass machine accessories is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for glass machine accessories in Brazil?
In Brazil, glass machine accessories (HS 846691) is classified under NCM 8466.91.00.