... cr, nr Type: 102PCS, 225PCS, 382PCS, 386PCS, 404 O-ring MaterialsNITRILE or BUNA N (NBR) MEDIUM NITRILETEMP RANGE ... Hydrocarbons (Carbon Tetrachloride Trichlorethylene) Nitro Hydrocarbons (Nitrobenzene, Aniline) Phosphate Ester Hydraulic Fluids (Skydrol, Fyrquel, Pydraul) Ketones (MEK, ... many chemicals ,including weathering and ozone conditions.Fluorocarbon O-Rings should be considered for seal use in ...