Natural Cork Pipe Flange Washers from Mexico
Large cork washers for sealing pipe flanges in low-pressure systems. Classified HTS 4503.90.20.00 as cork washers; compressible for easy installation. Common in agricultural plumbing.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Pressure rating certifications required
• Size declarations prevent Chapter 39 gasket confusion
• Bulk import avoids 7307 pipe fitting classification