Coated Paperboard Valve Stem Seals from Japan
Precision seals from coated paperboard for hydraulic valve stems. Classified HTS 4823.90.60.00 as coated paper seals preventing fluid bypass. PTFE coating enhances lubricity and chemical resistance.
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
• Pressure rating and fluid compatibility documentation essential
• Microscopic thickness measurements for stem clearance verification
• Distinguish from 8481 valve parts requiring functional assembly proof