O Ring Buna N Black PK20 ZUSAH4X55

O-Ring Metal Detectable Metal Detectable Not X-Ray Detectable X-Ray Detectable System of Measurement Metric Cross Section Shape Round O-Ring Material Buna N Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 55 mm Nominal Width 4 mm Actual Inside Dia 55 mm Actual Width 4 mm Dash Number Not Applicable Color Black Durometer 70A Nominal Outside Dia 63 mm Actual Outside Dia 63 mm Temp Range -40 Degrees to 250 Degrees F FDA Approved FDA Approved