-345 BLACK BUNA 70D O-RING

Ordered as H70345, this is an AS568-345 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 3.975 in (100.97 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.395 in (111.63 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. The material holds up against propane and butane, greases and lubricants, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in polar solvents or ozone and direct sunlight.

You will find this material specified across general industrial maintenance, automotive, and hydraulic and pneumatic systems.

This item is sold individually under part number H70345. Unit weight is approximately 9.08 g and nominal inside diameter is listed as 4 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.