O-ring Size # -011 These o-rings are high quality buna-nitrile rubber with durometer ratings of 70 / 90.
AS568#: 011 COMPOUND: Buna-Nitrile / Nitrile Rubber / Buna-N DUROMETER SHORE A: 70 INNER DIAMETER: 5/16" OUTER DIAMETER: 7/16" WALL THICKNESS: 1/16"
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