Manufacturer Varies O-Ring,Viton,Black,PK10 1RHX2

O-Ring, Not Metal Detectable Metal Detectable, Not X-Ray Detectable X-Ray Detectable, System of Measurement Metric, Cross Section Shape Round, O-Ring Material , Durometer (Hardness) Rating Medium Hard, Nominal Inside Dia. 19 mm, Nominal Width 3 mm, Actual Inside Dia. 19 mm, Actual Width 3 mm, Dash Number Not Applicable, Color Black, Durometer 75A, Meets/Exceeds ASTM D2000, SAE J200, Nominal Outside Dia. 25 mm, Actual Outside Dia. 25 mm, Temp. Range -15 Degrees to 400 Degrees F