Nitrile MIL-R-6855

Nitrile MIL-R-6855 is a Class 1 Fuel Resistant Nitrile black rubber elastomer with a smooth, matte finish. It is available in shore “A” hardness of 60 durometer, with a service temperature of -50 to +220°F (-45 to 104°C).

Nitrile, also known as Buna-N, is a popular synthetic elastomer that is manufactured from a copolymer of acrylonitrile and butadiene. This material is ideal for machinery gaskets and is perfect for those in and around oil and gas handling equipment due to its high resistance to oil and gasoline.

Nitrile generally has good resistance to oil and gasoline, good resistance to petroleum-based hydraulic fluids, good resistance to hydrocarbon solvents, and good resistance to alkalis and acids. This material is a great choice for gasket materials that will be in contact with hydrocarbons.

Available in a variety of specifications, it meets MIL-R-6855 Class 1 Grade 60 Specifications and can be used in oil and gas applications.

SKU: CG226/6855 Categories: ,
Material Code

Thickness (in stock)


Hardness "Shore A" (±5)

Tensile Strength

Temperature Range


Certificates and Approvals