-148 BLACK BUNA 70D O-RING

Part number H70148 is an AS568-148 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 2.737 in (69.52 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.943 in (74.75 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) is specified for low compression set under sustained load and an economical choice for high-volume maintenance programs. The compound resists propane and butane, hydraulic fluids, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in ozone and direct sunlight or automotive brake fluid.

You will find this material specified across agricultural equipment, construction equipment, and automotive.

H70148 ships individually. Unit weight is approximately 0.0015 g and nominal inside diameter is listed as 2 3/4 inch. Check the compound against your process media, pressure and temperature before committing to a design.