5101.11.40.00 - Other wool, finer than 40s but not finer than 44s

This HTS classification covers "Other wool, finer than 40s but not finer than 44s," specifically within the "Greasy, including fleece-washed wool" and "Shorn wool" categories. This means the wool has not undergone carding or combing and retains its natural grease content. The key defining characteristic is its fineness, measured in counts, falling within the specific range of being finer than a 40s count but not exceeding a 44s count. This typically refers to wool suitable for certain textile applications where this particular degree of fineness is required.

This category is distinguished from its siblings by its precise fineness range. For instance, HTS code 5101.11.20.00 covers "Unimproved wool; other wool, not finer than 40s," indicating wool that is either unimproved or coarser than the wool classified here. Conversely, HTS code 5101.11.50.00 pertains to "Other wool, finer than 44s," signifying wool that is of a higher fineness than what is covered by this specific classification. Therefore, accurate classification hinges on precise measurement of wool fiber fineness.

As a leaf node in the HTS classification structure, this category does not have further subcategories. All eligible wool meeting the description of "other wool, finer than 40s but not finer than 44s," in its greasy, shorn state, and not carded or combed, will be classified under this specific code. The classification relies solely on meeting the criteria of being greasy shorn wool and falling within the specified fineness range.