8-460 BLACK BUNA 90D BACK-UP RING

This back-up ring is supplied in AS568-460 black Buna-N (Nitrile) 90 Shore A measuring an inside diameter of 15.475 in (393.07 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 16.025 in (407.04 mm), catalogued under part number HB90460. It extends o-ring service life by supporting the seal against extrusion under high pressure.

Expect good resistance to many alcohols, propane and butane, and petroleum-based oils. Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

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

HB90460 ships individually. Unit weight is approximately 26.83 g and nominal inside diameter is listed as 15 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.