Music Box Mainspring from Canada
High-tension steel mainspring barrel assembly that stores energy for continuous music box playback (18-72 notes). Classified under HTS 9209.99.61.00 as core mechanism part for music boxes. Calibrated for 1-3 minute play duration per wind.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include torque ratings and play duration specs to distinguish from watch/clock springs
• Oil residue common; ensure proper packaging to prevent mechanism corrosion during transit
• Obtain material safety data for high-carbon steel compliance