5402.49.91.80 - Other (606)

This HTS classification, 5402.49.91.80, encompasses a broad category of "Other" multifilament synthetic yarns. These yarns are characterized by having a twist of 5 turns or more per meter and are not put up for retail sale. They fall under the broader umbrella of synthetic filament yarn, excluding sewing thread, and specifically exclude monofilaments with a decitex of less than 67. The "Other" designation signifies that these yarns do not fit into more specific subcategories based on material composition or specific yarn construction features that might be detailed at higher levels of the tariff schedule.

To differentiate this category from its sibling, 5402.49.91.75, which specifically covers polyethylene yarns, this classification is intended for all other multifilament synthetic yarns meeting the twist requirement and not composed of polyethylene. Therefore, if a multifilament synthetic yarn with 5 or more turns per meter is not identified as being made of polyethylene, it would likely be classified under this "Other" heading.

As a leaf node within the HTS, this category has no further subcategories. Classification within 5402.49.91.80 is determined by the absence of specific material classifications for multifilament synthetic yarns that meet the defined twist criteria. Importers and exporters should carefully review the material composition and physical characteristics of their goods to ensure they are not more specifically classified elsewhere within Chapter 54.