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8406.90.45.80/Steam Turbine Labyrinth Seal/Japan

Steam Turbine Labyrinth Seal from Japan

Non-contact seal with interlocking teeth preventing steam leakage between rotating and stationary turbine parts. Precision-machined from hard alloys, HTS 8406.90.45.80 as other parts (not leak-proof packing). Reduces efficiency losses in high-speed turbine environments.

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

• Differentiate from brush seals or packing via clearance specifications

• Surface finish measurements critical for customs engineering review