5403.10.30.20 - Monofilament; multifilament, untwisted or with twist of less than 5 turns per meter

This HTS category, 5403.10.30.20, specifically covers high tenacity yarn of viscose rayon that is classified as a single yarn. This classification applies to filament yarn, not intended for retail sale, including artificial monofilament with a decitex of less than 67. The key defining characteristics for inclusion here are the material (viscose rayon), its high tenacity property, and its construction as a single yarn.

Within the broader category of "High tenacity yarn of viscose rayon," this subcategory distinguishes itself from its sibling, 5403.10.30.40, based on the yarn's twist. While both are single yarns of high tenacity viscose rayon, this classification is exclusively for those with a twist of less than 5 turns per meter. The sibling category, in contrast, is for single yarns with a twist of 5 turns or more per meter. This difference in twist is a crucial differentiator for accurate customs classification.

As this node is a leaf node within the HTS structure, there are no further subcategories. Therefore, classification within 5403.10.30.20 is final for single yarns of high tenacity viscose rayon that are monofilament or multifilament with fewer than 5 turns per meter. Examples of such yarns would be those used in industrial applications like tire cord, conveyor belts, or ropes where high tensile strength is paramount.