-928 BLACK BUNA 50D O-RING

Ordered as H50928, this is an AS568-928 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 2.09 in (53.09 mm), a cross section of 0.118 in (3 mm), and an outside diameter of 2.326 in (59.08 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to many alcohols, petroleum-based oils, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) offers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

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

Reference part number H50928 when ordering; the item is sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.