9001.90.90.00/Diamond Turning Optical Blank/Japan

Diamond Turning Optical Blank from Japan

Precision-ground optical blank of germanium or ZnS prepared for single-point diamond turning into aspheres. HTS 9001.90.90.00 as unmounted optical substrate. Used in prototype IR optics manufacturing.

Duty Rate — Japan → United States

10%

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
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Import Tips

• Surface roughness (rms <50nm) and figure error specs pre-turning

• Material certificates trace to optical-grade melts

• Prototype status may qualify duty relief programs

Diamond Turning Optical Blank from Japan — Import Duty Rate | HTS 9001.90.90.00