Ordered as E70156, this is an AS568-156 black EPDM (EPR) 70 Shore A O-Ring measuring an inside diameter of 4.237 in (107.62 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.443 in (112.85 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
EPDM (EPR) is specified for excellent hot water and steam resistance, very good flexibility at low temperature. The material holds up against water and steam, ketones, and phosphate ester hydraulic fluids. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C). Applications involving petroleum oils and fuels or aromatic hydrocarbons call for a different compound.
Maintenance and OEM teams specify it across outdoor equipment, water and steam systems, and potable water applications.
This item is sold individually under part number E70156. Unit weight is approximately 2.131 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.
description -156 BLACK EPDM 70D O-RING
uf_description2 0.103" (2.62MM) CS X 4.237" (107.62MM) ID
Actual_CS 0.103 inch (2.62 mm)
Actual_ID 4.237 inch (107.62 mm)
Actual_OD 4.443 inch (112.85 mm)
ProductCode Description O-Rings - Bulk - Commodity