Nitrile Rubber-Like Plastic O-Ring Seals from Japan
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).
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%
Import Tips
• 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