-235 BLACK BUNA 70D O-RING

The H70235 is an AS568-235 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 3.109 in (78.97 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.387 in (86.03 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. The material holds up against propane and butane, water, and hydraulic fluids. 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 polar solvents or automotive brake fluid.

Common environments for this compound include automotive, fluid power, and general industrial maintenance.

Stocked as H70235 and sold individually. Unit weight is approximately 3.15 g. 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.