-474 BLACK BUNA 50D O-RING

H50474 is an AS568-474 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 24.94 in (633.48 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 25.49 in (647.45 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) is known for strong abrasion and tear resistance, reliable performance in both static and dynamic service. It resists greases and lubricants, petroleum-based oils, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with strong acids or polar solvents.

Maintenance and OEM teams specify it across fluid power, hydraulic and pneumatic systems, and agricultural equipment.

This item is sold individually under part number H50474. Nominal inside diameter is listed as 25 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.