5407.51.00.40 - Other (619)

This HTS category, 5407.51.00.40, encompasses unbleached or bleached woven fabrics composed of 85% or more by weight of textured polyester filaments, specifically those weighing not more than 170 g/m². These fabrics are characterized by their specific weave construction and the nature of the polyester filaments used, which have undergone a texturizing process. The "Other (619)" designation indicates a residual category for such fabrics that do not fall under more specific subheadings.

Distinguishing this category from its sibling, 5407.51.00.20, is crucial. While both pertain to unbleached or bleached woven fabrics of textured polyester filaments weighing not more than 170 g/m², the sibling category specifically refers to "Flat fabrics." This implies that 5407.51.00.40 is intended for woven fabrics that, while meeting the material and weight criteria, may possess other structural characteristics beyond a simple flat weave, or the term "flat fabrics" in the sibling is more narrowly defined.

As this node is a leaf node within the HTS database, there are no further subcategories. Therefore, classification within 5407.51.00.40 hinges on meeting all the preceding criteria: being a woven fabric of synthetic filament yarn, containing at least 85% by weight of textured polyester filaments, being either unbleached or bleached, and weighing no more than 170 grams per square meter, while not being classified under the more specific "flat fabrics" sibling. Examples might include certain types of lightweight upholstery fabrics, drapery materials, or linings that meet these technical specifications.