POM-C Copolymer Sheets
Noncellular POM-C (polyoxymethylene copolymer) sheets offering improved machining characteristics over homopolymer. HTS 3920.99.5000 for other plastics sheets where copolymer units meet predominance requirements. Used in precision mechanical applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If POM-C doesn't meet 95% purity threshold
Copolymers not meeting specific criteria fall to general 'other polyacetals' in 3920.79 per note (a)(4)
If machined into finished transmission parts
Finished plastic transmission components classified by function in Chapter 84/85
If for bulk industrial packaging widths
Extra-wide sheets (>1.5m) for industrial packaging may fall under different 3921 provisions
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Import Tips & Compliance
• Submit copolymer composition certificates showing POM monomer predominance; specify melt flow index matching POM-C specs
• Ensure no confusion with cheaper homopolymer grades
Related Products under HTS 3920.99.50.00
Polycarbonate Printer Transparency Film
Thin, noncellular polycarbonate sheets designed for inkjet and laser printers to create overhead transparencies. Classified under HTS 3920.99.5000 as other non-reinforced plastic sheets of polycarbonate, not combined with other materials. Meets polymer classification rules where polycarbonate monomer units predominate by weight.
PETG Signage Blanks
Clear, noncellular PETG (polyethylene terephthalate glycol) sheets used as blanks for laser-cut signage and displays. Falls under 3920.99.5000 as other unreinforced plastic sheets where PETG copolymer meets the 95% monomer content rule for classification. Not laminated or supported with other materials.
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.
Polysulfone Medical Grade Sheets
Transparent, noncellular polysulfone sheets certified for medical device fabrication and sterilization processes. HTS 3920.99.5000 applies to these high-performance unreinforced plastic sheets meeting polymer purity standards. Essential for biocompatible applications.
Clear PVC Document Sleeves Sheets
Noncellular polyvinyl chloride sheets cut to size for document protection sleeves and binders. Falls under 3920.99.5000 as other unreinforced PVC sheets not meeting specific subheadings. Non-laminated and suitable for office organization.
Nylon 6/6 Fabrication Sheets
Noncellular polyamide-6,6 sheets for machining into wear-resistant industrial parts. Classified 3920.99.5000 where nylon 6,6 monomers constitute ≥95% by weight per subheading note (a)(1). Unreinforced stock material only.