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Threaded Ductile Iron Adapter Fitting

Threaded adapter converting thread types or genders, ductile cast iron. Fits HTS 7307.19.30.60 as other threaded ductile. For mismatched piping systems.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.6%+75.0%80.6%
🇲🇽Mexico5.6%+50.0%55.6%
🇨🇦Canada5.6%+50.0%55.6%
🇩🇪Germany5.6%+50.0%55.6%
🇯🇵Japan5.6%+50.0%55.6%

Alternative Classifications

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

7307.99.50Lower: 79.3% vs 80.6%

If hex adapter steel

Fabricated adapters not cast.

7307Same rate: 80.6%

If stainless adapters

Stainless adapters specific.

7308.90.95Lower: 75% vs 80.6%

If reducer closure

Some adapters as pipe parts.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• List both end thread types (NPT x BSP) explicitly

• Short adapters risk close nipple classification

• Mark origin of melt for Section XV rules