Buna 70-232-Black-Pk50

This o-ring is supplied in AS568-232 black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 2.734 in (69.44 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.012 in (76.5 mm), catalogued under part number SB-H70232-50. It remains the most cost-effective sealing element available for pressurized assemblies. Supplementary detail from the product record: 3IDX2.75"ODX.125"CS.

It resists hydraulic fluids, many alcohols, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for low compression set under sustained load, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

You will find this material specified across general industrial maintenance, automotive, and agricultural equipment.

Stocked as SB-H70232-50 and sold by the bag. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.