O-Ring, Yes Metal Detectable, No X-Ray Detectable, System of Measurement Inch, Cross Section Shape Round, O-Ring Material Buna N, Durometer (Hardness) Rating Medium Hard, Nominal Inside Dia. 1/4 in, Nominal Width 1/16 in, Actual Inside Dia. 0.2 in, Actual Width 0.07 in, Dash Number 010, Color Black, Durometer 70 Shore A, Meets/Exceeds FDA, Nominal Outside Dia. 3/8 in, Actual Outside Dia. 0.379 in, Temp. Range -40 Degrees to 250 Degrees F, FDA Approved Yes