Polyurethane O-Ring for Pneumatic Valves
Cast polyurethane O-ring for sealing pneumatic control valves in automation systems, offering abrasion resistance. Classified as plastic O-ring under 3926.90.4510 from polyurethane polymers in 3909.50. Meets Chapter 39 for other plastic seals.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in flexible tube or hose form rather than ring seal
Tubes/pipes of plastic in 3917; solid O-rings are articles in 3926.
If part of complete valve appliance
Valve assemblies classified under tap/valve heading 8481.
If blend of multiple polymers without 95% dominance
Non-qualifying blends go to residual 'Other' per subheading note (a)(4).
Not sure which classification is right?
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Import Tips & Compliance
• Provide FTIR analysis confirming polyurethane as predominant polymer per note (b)(1)
• Check for REACH compliance if from EU to align with US import docs
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