5402.19.30.50 - Monofilament; multifilament, untwisted or with twist of less than 5 turns per meter

This HTS category, 5402.19.30.50, specifically classifies high tenacity yarn of nylon or other polyamides that is either a monofilament or a multifilament yarn with a twist of less than 5 turns per meter. The key characteristics are the material (nylon or other polyamides), its high tenacity nature, and its construction (monofilament or lightly twisted multifilament). These yarns are not intended for retail sale and are typically used in industrial applications such as tire cord, ropes, fishing nets, and industrial fabrics where strength and durability are paramount.

Distinguishing this category from its sibling, 5402.19.30.70, is crucial. The direct differentiator is the degree of twist. While this classification covers yarns with a twist of less than 5 turns per meter, the sibling category encompasses multifilament yarns that have undergone a more significant twisting process, with 5 turns or more per meter. This difference in twist can affect the yarn's strength, flexibility, and end-use properties.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce. Classification at this level relies on the precise fulfillment of all preceding criteria: being a high tenacity yarn of nylon or other polyamides, being a monofilament or a multifilament with less than 5 turns per meter, and not being put up for retail sale. Careful examination of the yarn's physical characteristics and intended manufacturing use is essential for correct classification.