Ordered as E70242, this is an AS568-242 black EPDM (EPR) 70 Shore A O-Ring supplied with an inside diameter of 3.984 in (101.19 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.262 in (108.25 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
The material holds up against phosphate ester hydraulic fluids, water and steam, and dilute acids and alkalis. EPDM (EPR) delivers good electrical insulating characteristics and very good flexibility at low temperature. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C).
Maintenance and OEM teams specify it across water and steam systems, solar and roofing assemblies, and potable water applications.
Reference part number E70242 when ordering; the item is sold individually. Unit weight is approximately 3.66 g. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description -242 BLACK EPDM 70D O-RING
uf_description2 0.139" (3.53MM) CS X 3.984" (101.19MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 3.984 inch (101.19 mm)
Actual_OD 4.262 inch (108.25 mm)
ProductCode Description O-Rings - Bulk - Commodity