This o-ring is supplied in AS568-248 black EPDM (EPR) 80 Shore A with an inside diameter of 4.734 in (120.24 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.012 in (127.3 mm), catalogued under part number E80PC248. It creates a positive seal at flange, piston and rod interfaces without added hardware.
The material holds up against phosphate ester hydraulic fluids, water and steam, and brake fluid. EPDM (EPR) is specified for excellent hot water and steam resistance, very good flexibility at low temperature. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). It should not be specified for service in mineral oil-based lubricants or petroleum oils and fuels.
Common environments for this compound include potable water applications, outdoor equipment, and brake and phosphate ester systems.
Order part number E80PC248, sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Description -248 BLACK EPDM 80D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 4.734 inch (120.24 mm)
Actual Outside Diameter 5.012 inch (127.3 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity