Seal/O-Ring Type: Standard Dash Size (in): 23 Applications: Ambient temperature fuel handling; High and low pressure LPG service; Hydraulic fluids (to 10,335 kPa/1,500 psi); Power steering seals; Radiator thermostat seals Not Compatible With: Automotive and aircraft brake fluids; High levels of ozone; Ketones; Phosphate ester fluids; Strong acids; UV light Primary Sealing Material: Rubber Coating: None Temperature (°F): -40 - 212 Compatible With: Abrasion resistant; Alpha-Olefin base synthetic lubricants; Ethylene Glycol; Hydrocarbon fuels; Petroleum base lubricants; Silicone oils and greases; Water, water base engine coolants; ORFS, STORS seals Cross Section Diameter (in): 0.07 Inside Diameter (in): 1.051 Outside Diameter (in): 1.191 Hardness (Shore A): 90 SAE AS568 Dash Size: -23 Material: NBR (Nitrile butadiene) Material Description: Nitrile (NBR) rubber is capable of service temperatures of -40 to 100C and is resistant to fuel oils, gasoline, ultra low sulfur diesel fuel and lubricants. Nitrile rubber is not recommended for applications that require resistance to bio-diesel or coolant. Color Notes: Actual o-ring color may differ from image. Notes: Dimensions and material descriptions provided for reference only.