POM Precision Washer from Mexico
Polyoxymethylene (POM/acetal) precision washers for mechanical assemblies requiring tight tolerances. Plastic washer under 3926.90.45 with POM monomer >95%.
Duty Rate — Mexico → United States
13.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Dimensional tolerance certificates (±0.01mm)
• Low moisture absorption verification
• Distinguish from metal washers via specific gravity tests