-138 BLACK CHLOROPRENE 70D O-RING

This o-ring is supplied in AS568-138 black Neoprene (Chloroprene) 70 Shore A measuring an inside diameter of 2.112 in (53.64 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.318 in (58.88 mm), catalogued under part number N70138. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to moderate petroleum oil exposure, ozone and weathering, and mild acids. Neoprene (Chloroprene) delivers a balanced combination of oil and weather resistance, good resilience across a moderate temperature band. 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 aromatic hydrocarbons or chlorinated solvents are present.

It sees regular use in weather sealing and enclosures, marine equipment, and transit and rail.

Order part number N70138, sold individually. Unit weight is approximately 1.4 g and nominal inside diameter is listed as 2 1/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.