5402.33.30.00 - Single yarn (600)

This HTS classification, 5402.33.30.00, specifically covers single yarns made from synthetic polyesters that have been textured. These yarns are not intended for retail sale and are distinguished from synthetic monofilaments. The "textured" designation refers to yarns that have been treated to increase their bulk, stretch, or crimp, altering their natural smooth filament structure to impart desirable properties for textile manufacturing.

This category is distinct from its sibling, 5402.33.60.00, which classifies multiple (folded) or cabled polyester yarns. While both fall under textured polyester yarns, this classification is for individual, untwisted or single ply yarns, whereas the sibling category applies to yarns that have been combined into two or more plies or twisted together. The primary differentiator is the construction of the yarn itself – single versus multiple or cabled.

As this is a leaf node within the HTS structure, there are no further subdivisions. Classification within this code relies on confirming that the yarn is indeed a single, textured polyester filament yarn and not a monofilament or a multiple/cabled yarn. The decitex of the yarn is a key characteristic, and while not explicitly stated in the description, it is a crucial factor in determining the broader category within 5402.