Not Compatible With: Amines; Brake fluids; Engine Coolant; Fire Resistant Fluids; Ketones; Steam; Water Temperature (°F): -40 - 350 Material Description: FKM provides superior performance in most applications, including Air, Engine Oil, Diesel Fuel, Hydraulic Oil, Automatic Transmission Fluid and Biodiesel. Most FKM formulations should not be used with Coolant/Urea. FKM is effective in high temperatures, and has good abrasion and cut resistance. Applications: High temperature applications requiring resistance to air, fuels, lubricants and hydraulic fluids Coating: None Compatible With: Diester lubricants; Halogenated hydrocarbons (above 100 Deg. C); Highly resistant to compression set; Petroleum fluids; Phosphate ester fluids; Silicone fluids; Some acids Cross Section Diameter (in): 0.224 Inside Diameter (in): 5.496 Outside Diameter (in): 5.945 Hardness (Shore A): 70 Material: FKM - Fluoroelastomer Color Notes: Actual o-ring color may differ from image. Notes: Dimensions and material descriptions provided for reference only.