4503.90.20.00 - Disks, wafers and washers

This HTS category, 4503.90.20.00, specifically covers articles of natural cork in the form of disks, wafers, and washers. These items are characterized by their flat, typically circular or ring-shaped, forms, manufactured from natural cork. Examples include cork gaskets, seals, spacers, and decorative disks used in various industrial and craft applications. The defining feature for classification here is the specific geometric shape and the material being natural cork.

When distinguishing this category from its siblings, it is important to note that 4503.90.40.00 is reserved for wallcoverings made of cork, which are designed for decorative and protective surfacing of walls and are often backed with paper or other reinforcing materials. The sibling category 4503.90.60.00, labeled as "Other," would encompass any remaining articles of natural cork that do not fit into the more specific classifications, such as disks, wafers, washers, or wallcoverings.

As a leaf node, this classification does not have further subcategories. Therefore, the focus for classification professionals is on ensuring that the goods accurately conform to the description of disks, wafers, and washers made from natural cork, differentiating them from other finished cork articles or forms. The key is the specific shape and material composition.