Compatible With: Ozone; Petroleum base lubricants and hydraulic fluids/fuels; UV light Applications: Brake seals; Hydraulic cylinder seals Not Compatible With: Water; Water base hydraulic fluids Temperature (°F): -40 - 200 Coating: None Cross Section Diameter (in): 0.094 Inside Diameter (in): 0.819 Outside Diameter (in): 1.008 Hardness (Shore A): 90 Material: Urethane Rubber Material Description: Polyurethane O-rings are typically used in applications requiring high pressures or abrasion resistance. Color Notes: Actual o-ring color may differ from image. Notes: Dimensions and material descriptions provided for reference only.