Mica Window Strips for Furnaces from Japan
Transparent strips of split mica used as peephole windows in high-temperature furnaces and stoves. They are worked mica articles under HTS 6814.90.00.00, valued for heat resistance without melting or cracking.
Duty Rate — Japan → United States
12.6%
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
• Include thickness and transparency specs to confirm as worked mica, not raw sheets
• Avoid framing; framed windows may classify as furnace parts under 8417 or 8516
• Certify heat tolerance over 500°C to differentiate from plastic alternatives