-277 BLACK BUNA 50D O-RING

This o-ring is supplied in AS568-277 black Buna-N (Nitrile) 50 Shore A supplied with an inside diameter of 11.484 in (291.69 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 11.762 in (298.75 mm), catalogued under part number H50277. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. The material holds up against petroleum-based oils, propane and butane, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

You will find this material specified across automotive, construction equipment, and agricultural equipment.

H50277 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.