Applications: High pressure, high temperature applications requiring resistance to air, fuels, lubricants and hydraulic fluids; ORFS, STORS seals Not Compatible With: Amines; Brake fluids; Engine Coolant; Fire Resistant Fluids; Ketones; Steam; Water Material: FKM - Fluoroelastomer,FKM (90) Cross Section Diameter (mm): 1.98 Inside Diameter (mm): 11.9 Coating: PTFE - Polytetrafluoroethylene Temperature (°C): -40 - 175 Compatible With: Diester lubricants; Halogenated hydrocarbons (above 100 Deg. C); Highly resistant to compression set; Petroleum fluids; Phosphate ester fluids; Silicone fluids; Some acids Seal Inside Diameter (mm): 11.89 Material 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. Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image.