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Threaded Conduit Adapter Joint with Silicone Insulation

A brass adapter joint for transitioning conduit sizes, lined with high-temperature silicone rubber insulation for electrical safety. Classified in HTS 8547.90.00.40 for other base metal conduit joints with insulating material lining. Used in high-heat industrial applications.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China4.6%+50.0%54.6%
🇲🇽Mexico4.6%+25.0%29.6%
🇨🇦Canada4.6%+25.0%29.6%
🇩🇪Germany4.6%+25.0%29.6%
🇯🇵Japan4.6%+25.0%29.6%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7412.20.00Higher: 78% vs 54.6%

If unlined brass fittings

Copper alloy tube fittings without insulation are under heading 7412.

4008.11.50Lower: 38.3% vs 54.6%

If silicone rubber dominates the structure

Silicone rubber plates and profiles fall under Chapter 40 if not assembled as metal-based conduit.

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Import Tips & Compliance

Provide silicone's temperature rating certification (e.g

200°C); ensure threaded metal is solely for assembly; watch for FDA compliance if food-related use