-412 BLACK BUNA 70D O-RING

This o-ring is supplied in AS568-412 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 2.85 in (72.39 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 3.4 in (86.36 mm), catalogued under part number H70412. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) delivers strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. It resists hydraulic fluids, many alcohols, and propane and butane. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with automotive brake fluid or ozone and direct sunlight.

You will find this material specified across automotive, construction equipment, and general industrial maintenance.

Reference part number H70412 when ordering; the item is sold individually. Unit weight is approximately 11.635 g and nominal inside diameter is listed as 2 7/8 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.