6117.90.90.50 - Of man-made fibers (635)

This HTS category, 6117.90.90.50, specifically covers knitted or crocheted parts of garments and clothing accessories that are *not* made from cotton, wool, or fine animal hair. These are "other" parts, meaning they are not specifically enumerated in preceding subheadings. The "Of man-made fibers" designation is crucial, indicating that the primary textile material comprising these parts must be synthetic or artificial fibers. Examples could include knitted cuffs, collars, or pocket linings made from polyester, nylon, or acrylic, intended for use in or with knitted garments or accessories.

This classification is distinct from its siblings by its material composition. 6117.90.90.40 applies to parts made of cotton, while 6117.90.90.45 is for parts constructed from wool or fine animal hair. The "Other" sibling, 6117.90.90.55, would encompass parts made from other natural fibers not covered by cotton or wool, such as silk or linen, or blends where those fibers are predominant.

As a leaf node, 6117.90.90.50 has no further subcategories. Therefore, the classification is final at this level, determined by the knitted or crocheted nature of the part and its composition primarily of man-made fibers, when it is not specifically covered by the cotton or wool/fine animal hair categories. The key determining factor for entry into this subheading is the presence and dominance of man-made fibers in the construction of the part.