-137 BLACK BUNA 50D O-RING

APG stocks the H50137, an AS568-137 black Buna-N (Nitrile) 50 Shore A O-Ring built to an inside diameter of 2.05 in (52.07 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.256 in (57.3 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, low compression set under sustained load. The material holds up against water, hydraulic fluids, and petroleum-based oils. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or ketones.

It sees regular use in general industrial maintenance, automotive, and hydraulic and pneumatic systems.

Stocked as H50137 and sold individually. Unit weight is approximately 0.0012 g and nominal inside diameter is listed as 2 1/16 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.