5403.39.90.40 - Multifilament, with twist of 5 turns or more per meter (606)

This HTS classification covers artificial multifilament yarn that is not put up for retail sale and has a specific twist characteristic. The yarn must be composed of synthetic filaments, as opposed to natural fibers, and will not be sold directly to consumers in its current form. The defining feature of this category is its twist rate: it must exhibit a twist of 5 turns or more per meter. This level of twist is crucial for differentiating it from other single yarns within the artificial filament category.

Crucially, this category is distinguished from its sibling, HTS 5403.39.90.20, by the twist applied to the multifilament. The sibling category encompasses monofilaments or multifilaments that are either untwisted or have a twist of less than 5 turns per meter. Therefore, the presence of a twist of 5 turns or more per meter is the singular determinant for classifying a multifilament yarn under this specific code, ensuring accurate separation based on manufacturing processes and resulting yarn properties.

As this is a leaf node within the HTS system, there are no further subcategories to introduce. The classification is definitive at this level. Examples of goods falling under this heading could include specialized industrial yarns used in the manufacturing of ropes, nets, or certain types of fabric where a higher twist is required to impart strength, durability, or a specific texture to the yarn. The key is that the yarn is a single yarn (not doubled or cabled) composed of artificial filaments, not intended for retail, and possessing the specified minimum twist per meter.