-318 BLACK BUNA 70D O-RING

Ordered as H70318, this is an AS568-318 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 0.975 in (24.77 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.395 in (35.43 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) is specified for low compression set under sustained load, reliable performance in both static and dynamic service. This material stands up to greases and lubricants, water, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.

Typical settings include general industrial maintenance, agricultural equipment, and fluid power.

Reference part number H70318 when ordering; the item is sold individually. Unit weight is approximately 0.0027 g and nominal inside diameter is listed as 1 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.