4823.90.80.00 - Gaskets, washers and other seals

HTS code 4823.90.80.00 specifically covers gaskets, washers, and other seals manufactured from paper, paperboard, cellulose wadding, or webs of cellulose fibers. These items are characterized by their function in preventing leakage or providing a seal between two surfaces. The classification applies to articles that are cut to size or shape and are designed for sealing purposes, distinguishing them from more general paper or cellulose products.

This particular heading (4823) encompasses a wide array of "other" paper and paperboard articles not elsewhere specified. Within this, 4823.90.80.00 is a specific subheading for these sealing components. It is crucial to differentiate these items from other "other" categories at the same level, such as 4823.90.86, which would likely cover other miscellaneous paper or cellulose articles that do not serve the specific function of a gasket, washer, or seal. The primary determinant for classification under 4823.90.80.00 is the article's intended use as a sealing element.

As this is a leaf node, there are no further subcategories under 4823.90.80.00. Therefore, classification within this code is final. Examples of goods that would fall under this heading include paper gaskets used in plumbing, paperboard washers for insulation purposes, or custom-cut cellulose fiber seals used in various mechanical applications where a non-metallic, disposable sealing component is required. The material composition and the definitive function as a seal are the key classification criteria.