-390 BLACK CHLOROPRENE 70D O-RING

This o-ring is supplied in AS568-390 black Neoprene (Chloroprene) 70 Shore A measuring an inside diameter of 20.953 in (532.21 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 21.373 in (542.87 mm), catalogued under part number N70390. It delivers dependable bidirectional sealing in a compact groove envelope.

This material stands up to ozone and weathering, mild acids, and moderate petroleum oil exposure. That behavior comes from the compound itself: Neoprene (Chloroprene) is specified for dependable general-purpose sealing in exposed installations and inherent flame-retarding characteristics. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in aromatic hydrocarbons or ketones.

You will find this material specified across general industrial, HVAC and refrigeration, and weather sealing and enclosures.

Stocked as N70390 and sold individually. Unit weight is approximately 52.8068 g and nominal inside diameter is listed as 21 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.