California Proposition 65: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. 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. 13 mm, Nominal Width 2.5 mm, Actual Inside Dia. 13 mm, Actual Width 2.5 mm, Dash Number Not Applicable, Color Black, Durometer 75A, Nominal Outside Dia. 18 mm, Actual Outside Dia. 18 mm, Temp. Range -15 Degrees to 400 Degrees F, FDA Approved FDA Approved. This item has been restricted from sale in the following state (s): []