HVAC System O-Ring Seals from China
Circular vulcanized rubber O-rings used in air conditioning units to seal refrigerant lines and prevent leaks. Falls under HTS 4016.93.5050 as other unspecified seals of vulcanized rubber, essential for HVAC system integrity.
Duty Rate — China → United States
40%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide cross-sectional diagrams and durometer hardness specs to distinguish from plastic seals in Chapter 39
• Ensure FDA compliance if for food-related HVAC; otherwise, standard rubber import rules apply
• Bundle with installation instructions to demonstrate non-specific machinery use, avoiding Chapter 84