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Buna-N Nitrile O-rings 90 Durometer are heat resistant up to 212*F and 250*F intermitten to -30*F
Typically used in applications with propane, butane, petroleum oil, mineral oil, grease, diesel fuel, mineral oils/greases, diluted acids, alkali and salt solutions at low temps and water.
NOT COMPATIBLE WITH....Benzene, trichlorethylene, ketone, acetone, acetic acid, ethylenester, strong acids, brake fluid with glycol base
90 Durometer o-rings have a harder more dense consistency and typically used in higher pressure applications