-423 BLACK CHLOROPRENE 70D O-RING

Part number N70423 is an AS568-423 black Neoprene (Chloroprene) 70 Shore A O-Ring measuring an inside diameter of 4.225 in (107.32 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.775 in (121.29 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The compound resists ozone and weathering, moderate petroleum oil exposure, and sunlight and salt spray. That behavior comes from the compound itself: Neoprene (Chloroprene) is valued 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 is not the right choice where ketones or aromatic hydrocarbons are present.

It sees regular use in marine equipment, HVAC and refrigeration, and weather sealing and enclosures.

This item is sold individually under part number N70423. Nominal inside diameter is listed as 4 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.