4MM CS X 17MM ID BLACK BUNA 70D

H4X17 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 17 mm (0.669 in), a cross section of 4 mm (0.157 in), and an outside diameter of 25 mm (0.98 in). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is valued for low compression set under sustained load, reliable performance in both static and dynamic service. This material stands up to many alcohols, hydraulic fluids, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or strong acids call for a different compound.

It sees regular use in fluid power, hydraulic and pneumatic systems, and automotive.

Reference part number H4X17 when ordering; the item is sold individually. Unit weight is approximately 1.0181 g. Review your operating media and conditions against this specification before installation.