Railway Buffer Spring from Canada
Heavy coil spring for railway buffer systems absorbing end-of-car impacts. Classified HTS 8607.99.50.00 as other parts for rolling stock. Ensures train stability during coupling.
Duty Rate — Canada → United States
28.1%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Spring rate/load deflection curve documentation required
• Material certs (e.g
• chrome-silicon steel) for fatigue proof
• Coil diameter specs prevent generic spring classification