Section XI — Textiles and textile articles
Chapter 55 — Manmade staple fibers
Heading 5509 — Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.
National subdivision 5509.3 — Containing 85% or more by weight of acrylic or modacrylic staple fibres:
Subheading 5509.31 — Single yarn
HS code
5509.31.00
Single yarn
Last Verified Date - 1 October 2026
Common commodities
Single high-content acrylic staple yarn (90%)Modacrylic staple yarn (87% content)Unplied 86% acrylic staple yarnHigh-grade single strand modacrylic yarn (>85%)Acrylic staple single yarn (min. 85%)Single strand yarn of high-content acrylic (90%)Modacrylic staple yarn (min. 86%)Acrylic staple single yarn (exact 85%)Synthetic single strand staple yarn (87% modacrylic)Single high-content acrylic staple yarn (>85%)