8-154 BLACK BUNA 90D BACK-UP RING

The HB90154 is an AS568-154 black Buna-N (Nitrile) 90 Shore A Back-Up Ring supplied with an inside diameter of 3.737 in (94.92 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 3.943 in (100.15 mm). This back-up ring allows a standard o-ring to operate at higher pressures than it could unsupported.

As a material, Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. This material stands up to greases and lubricants, petroleum-based oils, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or ketones call for a different compound.

Common environments for this compound include fluid power, hydraulic and pneumatic systems, and agricultural equipment.

This item is sold individually under part number HB90154. Unit weight is approximately 1.0933 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.