HNBR O-Ring for Oilfield Downhole Tools from Japan
Hydrogenated nitrile HNBR O-ring for high-pressure seals in oil/gas downhole drilling tools. HTS 4016.93.50.10 for vulcanized rubber O-rings enduring H2S/CO2 environments. API 6A compliant.
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
• NACE MR0175/ISO 15156 sour service certification essential
• Pressure/temperature rating documentation (up to 15,000 psi/350°F)
• Avoid 'drilling equipment part' descriptions triggering Chapter 84