O-Ring, No Metal Detectable, No X-Ray Detectable, System of Measurement Inch, Cross Section Shape Round, O-Ring Material Viton, Durometer (Hardness) Rating Medium Hard, Nominal Inside Dia. 13/32 in, Nominal Width 1/16 in, Actual Inside Dia. 0.4 in, Actual Width 0.072 in, Dash Number 905, Color Brown, Durometer 75 Shore A, Nominal Outside Dia. 9/16 in, Actual Outside Dia. 0.558 in, Temp. Range -15 Degrees to 400 Degrees F, FDA Approved No