Fluoroelastomer Backup Washer from Canada
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 — Canada → United States
13.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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