E70343 is an AS568-343 black EPDM (EPR) 70 Shore A O-Ring measuring an inside diameter of 3.725 in (94.62 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.145 in (105.28 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.
EPDM (EPR) is specified here for outstanding weather, ozone and sunlight resistance, very good flexibility at low temperature. It resists dilute acids and alkalis, ozone, UV and weathering, and water and steam. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C).
Typical settings include brake and phosphate ester systems, outdoor equipment, and water and steam systems.
E70343 ships individually. Unit weight is approximately 0.0077 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description -343 BLACK EPDM 70D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 3.725 inch (94.62 mm)
Actual Outside Diameter 4.145 inch (105.28 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity