-409 BLACK EPDM 70D O-RING

Ordered as E70409, this is an AS568-409 black EPDM (EPR) 70 Shore A O-Ring built to an inside diameter of 2.475 in (62.87 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 3.025 in (76.84 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Expect good resistance to dilute acids and alkalis, ketones, and brake fluid. That behavior comes from the compound itself: EPDM (EPR) is widely chosen for very good flexibility at low temperature and good electrical insulating characteristics. 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, brake and phosphate ester systems, and HVAC and refrigeration.

Reference part number E70409 when ordering; the item is sold individually. Unit weight is approximately 9.8643 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.