Silk Thread Bobbin
A precision plastic bobbin for high-end silk embroidery and sewing threads. It is made from Delrin acetal polymer for smooth unwinding. This bobbin falls under tariff item 3923.40.00 as a bobbin support for fine natural filaments.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the bobbin has a specialized coating for smooth unwinding
The bobbin may be classified as an other article of plastics if it has a specialized surface treatment.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the bobbin is not considered part of the silk thread, which may have separate classification
• Verify the Delrin acetal polymer is documented for CBSA
• Provide the bobbin's dimensions and surface finish details to support classification
Related Products under Tariff item 3923.40.00
3D Printer Filament Spool
A standard plastic spool designed to hold PLA or ABS filament for FDM 3D printers. It is molded from polycarbonate and is reusable, serving as a support for winding and dispensing polymer filament during printing operations. This spool falls under tariff item 3923.40.00 as a spool support for filament materials.
Cable Winding Cop
A plastic cop used for winding fine electrical cables and wires in electronics assembly. It is made from ESD-safe polypropylene to prevent static damage to sensitive components. This cop falls under tariff item 3923.40.00 as a cop support for conductive filaments.
Dental Floss Bobbin
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Embroidery Floss Spool
A small plastic spool used for retail packaging of embroidery floss in craft stores. It is typically molded from polystyrene for cost-effective production. This spool falls under tariff item 3923.40.00 as a spool support for textile threads.
Fishing Line Cop
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Industrial Bobbin for Weaving
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