-117 BLACK BUNA 70D O-RING

This o-ring is supplied in AS568-117 black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 0.799 in (20.29 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.005 in (25.53 mm), catalogued under part number H70117. It remains the most cost-effective sealing element available for pressurized assemblies.

The compound resists propane and butane, hydraulic fluids, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is known for low compression set under sustained load, reliable performance in both static and dynamic service. 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 polar solvents.

Maintenance and OEM teams specify it across fluid power, construction equipment, and agricultural equipment.

This item is sold individually under part number H70117. Unit weight is approximately 0.4741 g. Review your operating media and conditions against this specification before installation.