-177 BLACK BUNA 70D O-RING

H70MD177 is an AS568-177 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 9.487 in (240.97 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 9.693 in (246.2 mm). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists greases and lubricants, water, and hydraulic fluids. Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, 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). Verify compatibility before use with ozone and direct sunlight or ketones.

This item is metal detectable for HACCP and foreign-body control programs. Maintenance and OEM teams specify it across hydraulic and pneumatic systems, automotive, and fluid power.

This item is sold individually under part number H70MD177. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.