4MM CS X 156MM ID BLACK BUNA 70D

Part number H4X156 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 156 mm (6.142 in), a cross section of 4 mm (0.157 in), and an outside diameter of 164 mm (6.46 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, low compression set under sustained load. The compound resists hydraulic fluids, many alcohols, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in automotive brake fluid or strong acids.

Typical settings include hydraulic and pneumatic systems, fluid power, and construction equipment.

Reference part number H4X156 when ordering; the item is sold individually. Unit weight is approximately 7.76 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.