-409 BLACK CHLOROPRENE 70D O-RING

Part number N70409 is an AS568-409 black Neoprene (Chloroprene) 70 Shore A O-Ring supplied with an inside diameter of 2.475 in (62.87 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 3.025 in (76.84 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists mild acids, refrigerants and ammonia, and moderate petroleum oil exposure. That behavior comes from the compound itself: Neoprene (Chloroprene) is specified for good resilience across a moderate temperature band and dependable general-purpose sealing in exposed installations. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong oxidizing acids or aromatic hydrocarbons.

You will find this material specified across weather sealing and enclosures, HVAC and refrigeration, and marine equipment.

This item is sold individually under part number N70409. Nominal inside diameter is listed as 2 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.