Nomex N100 Aramid Monofilament from Mexico
DuPont Nomex N100 high-tenacity aramid monofilament, single yarn <920 decitex, twist-free for firefighter gear reinforcement. Classifies in HTS 5402.11.30.10 as untwisted/low-twist aramid polyamide yarn, bulk industrial form.
Duty Rate — Mexico → United States
18.8%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Certify flame-retardant aramid polymer content; substitutes may shift classification
• Use commercial invoices specifying 'not sewing thread, not retail' to prevent Chapter 52/55 shifts
• Test for monofil vs multifil; diameter >67 dtex could affect monofil status