Nitrile Rubber-Like Plastic O-Ring Seals
Circular cross-section O-ring seals made from synthetic nitrile-based plastic copolymer for hydraulic systems. Classified in 3926.90.45 as plastic seals where the named copolymer units exceed 95% by weight per subheading note (a)(2).
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as synthetic rubber O-rings
Elastomeric rubber seals go to Chapter 40; chemical structure determines plastic vs rubber heading.
If imported as spare parts for machinery
Seals for specific machines may classify as parts under 8484, especially in assemblies.
If meeting size limits for Free (B) rate per US note
Small photo-related seals qualify for special rates under 3926.90.48, but only if under 38.1x45.7 cm.
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Import Tips & Compliance
• Submit monomer analysis report to confirm copolymer meets 95% threshold for plastic classification
• Label with durometer hardness and temperature ratings for customs verification
• Avoid common error of classifying with rubber goods; test for polymer vs elastomer distinction
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