Graphite-Mineral Friction Washers for ATR Turboprops
Friction washers combining graphite and other mineral substances for brake and clutch applications in ATR 72 turboprop aircraft. HTS 6813.89.0010 covers these unmounted articles for civil aircraft, providing low-wear performance in high-cycle operations.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If articles of stone or similar minerals without friction function
Non-friction mineral articles like gaskets fall under general Chapter 68 headings.
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Import Tips & Compliance
• Certify graphite as qualifying mineral substance per chapter notes; segregate from Chapter 25 raw minerals; prepare for FAA Form 8130-3 airworthiness approvals
Related Products under HTS 6813.89.00.10
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Clutch plates made from mineral substance composites for rotor transmissions in civil helicopters like the Bell 407. HTS 6813.89.0010 applies to these unmounted friction articles for clutches in civil aircraft, combining mineral bases with minimal textiles for optimal torque transfer. Essential for safe rotor engagement in commercial aviation.
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Sintered mineral-based brake segments for the wheel brake systems of Embraer regional jets like the E175. These unmounted friction material articles are classified in HTS 6813.89.0010 due to their mineral substance composition for civil aircraft brakes, offering high friction stability under extreme conditions.
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