4MM CS X 146MM ID BLACK BUNA 70D

The H4X146 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 146 mm (5.748 in), a cross section of 4 mm (0.157 in), and an outside diameter of 154 mm (6.06 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The compound resists petroleum-based oils, propane and butane, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

Common environments for this compound include construction equipment, general industrial maintenance, and agricultural equipment.

This item is sold individually under part number H4X146. Unit weight is approximately 7.2322 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.