Music Box Mainspring
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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If industrial helical springs
Untuned springs without musical specification are Chapter 73 metal articles.
If clock timepiece parts
Clock mainsprings have dedicated classification in heading 9106.
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Import Tips & Compliance
• 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
Related Products under HTS 9209.99.61.00
Deluxe Music Box Cylinder Blank
Unpinned nickel-plated brass cylinder ready for custom pinning, sized for 72-note music boxes. Blank part under HTS 9209.99.61.00 for music boxes. Precision lathe-turned with pin starter holes.
Reuge Music Box Mechanism
Precision-engineered mechanical movement from Reuge, designed specifically for music boxes, featuring a cylinder and comb system to play melodies when wound. Classified under HTS 9209.99.61.00 as a part (mechanism) for music boxes. It produces sound through mechanical pins plucking tuned teeth, essential for traditional music box operation.
Thorens Music Box Cylinder
Interchangeable pinned metal cylinder from Thorens for programming custom tunes in disc or cylinder music boxes. Falls under HTS 9209.99.61.00 as a replaceable part for music boxes. Allows users to customize melodies by pinning patterns on the cylinder surface.
Music Box Tuning Comb
Steel comb with precisely tuned tines that vibrate to produce notes when struck by pins on a music box cylinder. HTS 9209.99.61.00 covers it as an essential mechanism part for music boxes. Custom tempering ensures accurate pitch across 15-72 notes.
Music Box Melody Disc Collection
Set of 12 interchangeable punched discs with classical melodies for Thorens disc music boxes. Accessory classified under HTS 9209.99.61.00 for music boxes. Tin-plated steel, 70mm diameter.
Perforated Music Box Discs
Stamped metal discs with punched holes that control melody playback in disc-driven music box mechanisms. Specifically classified under HTS 9209.99.61.00 as parts for music boxes. Each disc holds one pre-programmed tune like 'Für Elise'.