-212 BLACK BUNA 70D O-RING

This o-ring is supplied in AS568-212 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 0.859 in (21.82 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.137 in (28.88 mm), catalogued under part number H70212. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, most widely specified general-purpose sealing elastomer. This material stands up to many alcohols, water, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where automotive brake fluid or strong acids are present.

It sees regular use in general industrial maintenance, agricultural equipment, and construction equipment.

Reference part number H70212 when ordering; the item is sold individually. Unit weight is approximately 0.001 g and nominal inside diameter is listed as 7/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.