-242 BLACK EPDM 70D NSF O-RING

The E70NSF242 is an AS568-242 black EPDM (EPR) 70 Shore A O-Ring measuring 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). This o-ring compresses into its gland to block fluid or gas migration across a joint.

The compound resists ketones, water and steam, and brake fluid. That behavior comes from the compound itself: EPDM (EPR) is known for strong performance in outdoor and exposed installations, 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 petroleum oils and fuels or aromatic hydrocarbons.

The compound meets FDA requirements for food contact, carries NSF listing, and is metal detectable for HACCP and foreign-body control programs. Maintenance and OEM teams specify it across outdoor equipment, solar and roofing assemblies, and water and steam systems.

Reference part number E70NSF242 when ordering; the item is sold individually. Unit weight is approximately 0.0038 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.