4MM CS X 380MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 380 mm (14.961 in), a cross section of 4 mm (0.157 in), and an outside diameter of 388 mm (15.28 in), catalogued under part number H4X380. It creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) delivers strong abrasion and tear resistance, low compression set under sustained load. It resists greases and lubricants, propane and butane, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ketones or polar solvents are present.

It sees regular use in construction equipment, fluid power, and automotive.

Reference part number H4X380 when ordering; the item is sold individually. Unit weight is approximately 18.815 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.