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HSChapter 54
U.S. imports of textured nylon & polyamide filament yarn, not over 500 decitex (HS 540231) totaled $1.3M in April 2026, traded with 18 countries.
Last updated: April 2026 dataTextured nylon yarn at or below 500 decitex is the fine-count segment used predominantly in hosiery, lingerie, swimwear, and lightweight sportswear fabrics, where bulk, stretch recovery, and soft hand are the key performance attributes. Thailand leads US supply under this heading, followed by Italy and Mexico. The 500 decitex ceiling is the critical classification threshold: yarn measured above that limit shifts to heading 540232, so accurate linear density testing is essential before filing entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The US schedule splits textured nylon yarn into two headings — 540231 for yarn at or below 500 decitex and 540232 for yarn above 500 decitex — and the applicable duty rates differ between them. A misstatement of linear density, even by a small margin, can result in a different tariff line, potential penalties, and a demand for reliquidation.
False-twist texturing is by far the most common method for fine nylon yarn in this decitex range, imparting crimp and bulk without significantly increasing linear density. Air-jet and stuffer-box texturing are less common at these counts. The texturing method itself does not change the HTS classification, but it affects end-use suitability and buyer specifications.
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Monthly import values over time