4016.93.50.50 - Other

This HTS category, 4016.93.50.50, encompasses "Other" articles of vulcanized rubber, excluding hard rubber, that function as gaskets, washers, or seals. It captures a broad range of sealing components made from vulcanized rubber that do not fit into more specific subcategories like O-rings or oil seals. These items are typically designed to prevent leakage or ingress of fluids or gases in various mechanical and industrial applications.

Distinction from sibling categories is crucial for accurate classification. While 4016.93.50.10 specifically covers O-rings, which are typically circular rings with a toroidal cross-section, and 4016.93.50.20 designates oil seals, which are specialized for retaining lubricants, this "Other" category serves as a residual for all other types of vulcanized rubber sealing elements. Examples may include flat washers, custom-shaped seals for specific machinery, or sealing strips that do not conform to the precise definitions of O-rings or oil seals.

As this node is a leaf category, there are no further subdivisions. Therefore, classification within this code relies on a thorough examination of the article's form, function, and material composition to ensure it is indeed a vulcanized rubber article serving as a gasket, washer, or seal and is not otherwise specifically enumerated under a more precise heading within Chapter 40 or elsewhere in the tariff schedule.