APG stocks the E70249, an AS568-249 black EPDM (EPR) 70 Shore A O-Ring supplied with an inside diameter of 4.859 in (123.42 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.137 in (130.48 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.
EPDM (EPR) is specified here for strong performance in outdoor and exposed installations, excellent hot water and steam resistance. This material stands up to ozone, UV and weathering, water and steam, and phosphate ester hydraulic fluids. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). Exposure to petroleum oils and fuels or aromatic hydrocarbons will shorten service life.
Common environments for this compound include outdoor equipment, potable water applications, and brake and phosphate ester systems.
Stocked as E70249 and sold individually. Unit weight is approximately 4.65 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description -249 BLACK EPDM 70D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 4.859 inch (123.42 mm)
Actual Outside Diameter 5.137 inch (130.48 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity