Dash Number: -324 , Fractional ID: 1 3/8'' , Actual ID: 1.35'', Actual OD: 1.77'' , Width (Cross Section): 0.21'' -40 to 225 Degrees F Performs well in: petroleum oils and fuels, silicone oils and greases, ethylene glycol, dilute acids, water SAE AS568, ASTM D1418, ASTM D2000, SAE J200. 70A Durometer Used in common sealing applications, these nitrile/Buna N O-rings offer excellent resistance to tearing. They handle common motor and hydraulic oils with ease. 70A durometer. -40-225 degrees F. Meet SAE AS568, ASTM D1418, ASTM D2000, SAE J200. Performs well in: -Petroleum oils and fuels -Silicone oils and greases -Ethylene glycol -Dilute acids -Water