HS Code for Acrylonitrile-butadiene rubber

Acrylonitrile-butadiene rubber (NBR), in forms other than latex, is classified under HS code 4002.59. Chapter 40 of the Harmonized System covers rubber and articles thereof. Heading 4002 is dedicated to synthetic rubber and factice derived from oils, in primary forms or in plates, sheets, or strip. Within this heading, the 4002.5x series is specific to acrylonitrile-butadiene rubber (NBR). Subheading 4002.59 is the 'other' category for NBR that is not in the form of latex. This includes NBR in blocks, crumbs, or non-vulcanized sheets. The classification depends on the product being in a 'primary form' as defined by Note 3 to Chapter 40, which includes liquids and pastes, blocks of irregular shape, lumps, powders, granules, and similar bulk forms. This code is used for the raw synthetic rubber material before it has been compounded with fillers or vulcanized into finished products.

Products Included

• NBR synthetic rubber in blocks or bales
• Acrylonitrile-butadiene rubber crumbs
• Unvulcanized NBR sheets and strips
• NBR powder for industrial processing
• Non-latex NBR primary forms

Common Misclassification

NBR is often misclassified under 4002.51, which is strictly for the latex (liquid dispersion) form of the rubber. Another common error is using 4005.10, which is for compounded rubber (rubber mixed with carbon black or silica). If the NBR has been vulcanized and cut into specific shapes, it may fall under 4008.21 (plates/sheets) or 4016.93 (gaskets/seals), depending on the degree of processing and the final application.

FAQ

What is the HS code for NBR rubber?

The HS code for NBR in primary forms (excluding latex) is 4002.59.

What qualifies as a 'primary form' for NBR?

Primary forms include raw blocks, lumps, powders, or granules that have not yet been mixed with vulcanizing agents or fillers like carbon black.