-452 BLACK BUNA 70D O-RING

Ordered as H70452, this is an AS568-452 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 11.475 in (291.47 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 12.025 in (305.44 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against water, greases and lubricants, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in ketones or automotive brake fluid.

It sees regular use in hydraulic and pneumatic systems, general industrial maintenance, and fluid power.

Reference part number H70452 when ordering; the item is sold individually. Unit weight is approximately 44.239 g and nominal inside diameter is listed as 11 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design.