-347 BLACK BUNA 70D O-RING

H70347 is an AS568-347 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 4.225 in (107.32 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.645 in (117.98 mm). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists many alcohols, water, and petroleum-based oils. Buna-N (Nitrile) offers reliable performance in both static and dynamic service, low compression set under sustained load. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or strong acids will shorten service life.

You will find this material specified across construction equipment, agricultural equipment, and automotive.

This item is sold individually under part number H70347. Unit weight is approximately 9.6437 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.