Protractor Angle Encoder Disc
Optical encoder disc for digital protractors used in drafting machines (9017.10.40). Etched glass disc reads angular positions to 0.01° accuracy. Specific part for listed instruments classifies in 9017.90.01.05.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If part of laser scanning or profiling instruments
Parts for 9013 measuring instruments (including certain telescopes) classify separately
If imported as unfinished optical glass elements
Unworked optical glass sheets classify in 7014 before becoming instrument parts
If considered an electronic integrated circuit component
Certain encoder chips may classify under Chapter 85 electronics provisions
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include optical resolution specifications; verify glass etching qualifies as optical element; provide parent protractor model compatibility documentation
Related Products under HTS 9017.90.01.05
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This precision caliper head is a replacement part specifically designed for digital drafting machines classified under HTS 9017.10.40. It features high-accuracy digital readouts for measuring lengths in technical drawings and engineering layouts. As a dedicated accessory, it falls under 9017.90.01.05 per Chapter 90 classification rules for parts of listed instruments.
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