This specification covers nitrile-butadiene elastomer in the form of molded sheet and shapes, color coded yellow per ARP1527.Primarily for parts such as grommets, tube supports, clamp cushions, bushings, gaskets, and seals requiring resistance to aromatic and aliphatic fuels, hydrocarbon-based hydraulic fluids, and diester base lubricating oils, flame resistant, and ozone resistance, but usage is not limited to such applications. This material is not suitable for use in contact with ketones or phosphate ester-based hydraulic fluids. Each application, however, should be considered individually.