Buna 70-331-Black-Pk3

Part number SB-H70331-3 is an AS568-331 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 2.225 in (56.52 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.645 in (67.18 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Additional detail on this item: 2.625IDX2.25"ODX.1875"CS.

The compound resists petroleum-based oils, propane and butane, and water. Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or automotive brake fluid.

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

SB-H70331-3 ships by the bag. Review your operating media and conditions against this specification before installation.