Steam Turbine Labyrinth Seal from China
Non-contact seal with interlocking teeth preventing steam leakage between rotating and stationary turbine parts. Precision-machined from hard alloys, HTS 8406.90.45.80 as other parts (not leak-proof packing). Reduces efficiency losses in high-speed turbine environments.
Duty Rate — China → United States
42.5%
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
• Differentiate from brush seals or packing via clearance specifications
• Surface finish measurements critical for customs engineering review