5407.41.00.30 - Weighing not more than 170 g/m² (620)

This classification covers woven fabrics manufactured from synthetic filament yarns, specifically those composed of 85 percent or more by weight of filaments of nylon or other polyamides. The fabrics within this category are characterized by being in an unbleached or bleached state. This implies they have undergone initial processing but have not yet been dyed, printed, or further finished. The classification hinges on the material composition and the fabric's absence of coloring treatments.

Crucially, this subcategory distinguishes itself from its sibling, 5407.41.00.60, based on weight per square meter. While both fall under woven fabrics of synthetic filament yarn, containing 85 percent or more nylon or polyamide, and being unbleached or bleached, the defining factor here is that the fabric weighs **not more than 170 g/m²**. The sibling category specifically addresses fabrics weighing **more than 170 g/m²**. This weight differential is a critical determinant for accurate classification.

As a leaf node within the HTS, there are no further subcategories branching from 5407.41.00.30. Therefore, the classification is definitive at this level, provided the material, construction, state (unbleached/bleached), and weight criteria are met. Examples of goods that might fall under this code include lightweight nylon or polyamide linings, specific types of interlinings, or base fabrics intended for further processing where the weight is a primary specification.