Acetal Engineering Sheets
Noncellular acetal (polyoxymethylene) sheets for machining into precision engineering components. Classified in 3920.99.5000 as other plastic sheets, non-reinforced, where acetal polymer meets the 'poly' prefix 95% purity requirement. Used in industrial fabrication, not as finished parts.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chemically modified acetal variant
Chemically modified polymers go to 'Other' subheading 3920.79 per note (a)(3), separate from unmodified polyacetal
If in roll form rather than cut sheets
Rolls of plastic sheeting classified under 3920.99.20 statistical suffix, while cut sheets fall in .5000
If pre-machined to component dimensions
Machined-to-shape pieces become 'other articles' rather than stock sheets under GRI 2(a) specific vs general
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Import Tips & Compliance
• Require FTIR spectroscopy reports confirming ≥95% acetal polymer content per subheading note (a)(1); clearly mark as 'stock material - not finished parts' to avoid parts classification
• Segregate from any fiber-reinforced grades during shipment
Related Products under HTS 3920.99.50.00
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POM-C Copolymer Sheets
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