3926.90.45.90/Fluoroelastomer Backup Washer/Japan

Fluoroelastomer Backup Washer from Japan

Viton fluoroelastomer washer backing primary seals in oilfield pumps, from heading 3904 copolymers. HTS 3926.90.45.90 for other seals. Resists extreme chemicals and temperatures.

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

• Prove 95% fluoro comonomer content via lab reports per note (a)(2)

• Declare as individual washer, not set, to stay in 3926

• Avoid industrial end-use ambiguity leading to Chapter 84