5503.19.90.00 - Other

This HTS classification covers synthetic staple fibers of nylon or other polyamides that are not carded, combed, or otherwise processed for spinning, and that do not fall under the specific category of those containing 10 percent or more by weight of nylon 12. Essentially, this broad category captures all other nylon or polyamide staple fibers that meet the general criteria of being man-made staple fibers and are not yet prepared for yarn production, excluding the specifically defined nylon 12 content.

The distinguishing factor for this classification, 5503.19.90.00, lies in its exclusion of materials predominantly composed of nylon 12. The sibling category, 5503.19.10.00, precisely identifies staple fibers with a significant (10% or more by weight) nylon 12 component, which are often used for specialized applications due to nylon 12's unique properties. Therefore, this "Other" category serves as a residual classification for all other nylon and polyamide staple fibers meeting the general description of Chapter 55, but lacking the specific nylon 12 content.

As this is a leaf node, there are no further subcategories. Classification into this code is determined by the absence of the specific qualifying feature (nylon 12 content above 10% by weight) present in its sibling category, while still fulfilling the general requirements of being a man-made staple fiber of nylon or other polyamides, not carded, combed, or otherwise processed for spinning.