O-Ring, Metal Detectable Metal Detectable, Not X-Ray Detectable X-Ray Detectable, System of Measurement Inch, Cross Section Shape Rectangular, O-Ring Material Buna N, Durometer (Hardness) Rating Medium Hard, Nominal Inside Dia. 1 15/16 in, Nominal Width 3/32 in, Actual Inside Dia. 1.9 in, Actual Width 0.103 in, Dash Number 135, Color Black, Durometer 70A, Nominal Outside Dia. 2 1/8 in, Actual Outside Dia. 2.131 in, Temp. Range -40 Degrees to 250 Degrees F, FDA Approved FDA Approved