This o-ring is supplied in AS568-311 black EPDM (EPR) 70 Shore A measuring an inside diameter of 0.537 in (13.64 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 0.957 in (24.31 mm), catalogued under part number E70311. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
EPDM (EPR) is specified here for excellent hot water and steam resistance, very good flexibility at low temperature. The compound resists water and steam, brake fluid, and ketones. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C).
Common environments for this compound include water and steam systems, potable water applications, and brake and phosphate ester systems.
E70311 ships individually. Unit weight is approximately 1.584 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description -311 BLACK EPDM 70D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 0.537 inch (13.64 mm)
Actual Outside Diameter 0.957 inch (24.31 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity