-039 BLACK CHLOROPRENE 70D O-RING

APG stocks the N70039, an AS568-039 black Neoprene (Chloroprene) 70 Shore A O-Ring with an inside diameter of 2.739 in (69.57 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.879 in (73.13 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

It resists sunlight and salt spray, moderate petroleum oil exposure, and ozone and weathering. That behavior comes from the compound itself: Neoprene (Chloroprene) delivers good resilience across a moderate temperature band and dependable general-purpose sealing in exposed installations. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong oxidizing acids or aromatic hydrocarbons are present.

It sees regular use in general industrial, weather sealing and enclosures, and HVAC and refrigeration.

This item is sold individually under part number N70039. Unit weight is approximately 0.78 g and nominal inside diameter is listed as 2 3/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.