Constant Force Spring from Japan
A pre-stressed steel strip spring providing near-constant force over travel distance, used in retractable cords or tape measures. Falls under HTS 7320.90.50.60 as other iron or steel springs due to its unique design not matching leaf or vehicle types.
Duty Rate — Japan → United States
12.9%
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
Import Tips
• Specify if strip-formed from sheet steel vs. wire to confirm Chapter 73 scope
• Provide engineering drawings showing spring function for valuation