-044 BLACK BUNA 70D O-RING

Ordered as H70MD044, this is an AS568-044 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 3.739 in (94.97 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.879 in (98.53 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The material holds up against hydraulic fluids, propane and butane, and greases and lubricants. Buna-N (Nitrile) offers low compression set under sustained load, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

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

Reference part number H70MD044 when ordering; the item is sold individually. Review your operating media and conditions against this specification before installation.