O-Ring, Metal Detectable Metal Detectable, Not X-Ray Detectable X-Ray Detectable, System of Measurement Metric, Cross Section Shape Round, O-Ring Material Viton, Durometer (Hardness) Rating Medium Hard, Nominal Inside Dia. 72 mm, Nominal Width 2.5 mm, Actual Inside Dia. 72 mm, Actual Width 2.5 mm, Dash Number Not Applicable, Color Black, Durometer 75A, Nominal Outside Dia. 77 mm, Actual Outside Dia. 77 mm, Temp. Range -15 Degrees to 400 Degrees F, FDA Approved FDA Approved