Single Spring Mechanical Face Seal from China
A mechanical seal featuring a single spring mechanism to maintain contact between rotating and stationary sealing faces, commonly used in industrial pumps. It falls under HTS 8484.20.00.00 as a mechanical seal designed for dynamic sealing applications in rotating equipment. These seals prevent leakage of fluids under pressure by balancing axial forces.
Duty Rate — China → United States
38.9%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Verify seal material composition (e.g
• carbon, ceramic faces) for accurate HTS classification and ensure supplier provides certification
• Include detailed technical specs like pressure rating and shaft size in import documentation to avoid misclassification as parts
• Check for anti-dumping duties on seals from certain origins and maintain proof of end-use in machinery