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8402.90.00.90/Burner Mounting Refractory Thimble/Japan

Burner Mounting Refractory Thimble from Japan

Cylindrical refractory sleeve that protects boiler casing where fuel burners penetrate furnace walls. Essential part for safe combustion in vapor generating boilers under HTS 8402.90.00.90.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Match thimble dimensions to specific burner models for classification support

• Include expansion joint design specs for thermal cycling proof

Burner Mounting Refractory Thimble from Japan — Import Duty Rate | HTS 8402.90.00.90