HS Code for Rubber seals

Rubber seals are classified under HS code 4016.93. This code is part of the broader heading 4016, which encompasses "Other articles of vulcanised rubber other than hard rubber." The subheading 4016.93 specifically identifies "Gaskets, washers and other seals." The classification is based on the material composition—vulcanized, non-cellular rubber—and the intended use of the article as a sealing component. According to the General Interpretative Rules, products are classified according to the material that gives them their essential character. For these items, the elastomeric properties of vulcanized rubber are what allow them to function as seals. This code is used globally for a wide range of industrial and automotive sealing components that are made entirely or predominantly of rubber. The vulcanization process is key; if the rubber were not vulcanized, it would likely fall under 4005 or 4006. Furthermore, the non-cellular nature distinguishes these from foam rubber seals, which are classified under 4016.10.

Products Included

• Rubber O-rings for hydraulic systems
• Oil seals and grease seals for automotive engines
• Rubber washers for plumbing fixtures
• Static and dynamic rubber gaskets
• Inflatable rubber seals for industrial doors
• Custom molded rubber seals for machinery

Common Misclassification

A frequent error is classifying rubber seals under 4008.21 or 4008.29, which cover plates, sheets, and strips of non-cellular rubber. While seals may be cut from these materials, once they are finished articles shaped for a specific sealing purpose, they must move to 4016.93. Another common misclassification is 8484.10, which is for gaskets and similar joints of metal sheeting combined with other material. If a seal is 100% rubber, it belongs in 4016.93; if it is a composite of metal and rubber, 8484 is often more appropriate. Finally, plastic seals are classified in 3926.90, so material identification is critical for correct duty assessment.

FAQ

What is the HS code for rubber seals?

The standard HS code for gaskets, washers, and other seals made of vulcanized rubber is 4016.93.

Can rubber seals be classified under Chapter 84?

Generally, no. While they are parts of machinery, Note 1(a) to Section XVI (which includes Chapter 84) excludes articles of vulcanized rubber, directing them back to Chapter 40.