-241 BLACK BUNA 70D O-RING

Ordered as H70241, this is an AS568-241 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 3.859 in (98.02 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.137 in (105.08 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 petroleum-based oils, many alcohols, and greases and lubricants. Buna-N (Nitrile) is widely chosen for low compression set under sustained load and an economical choice for high-volume maintenance programs. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

You will find this material specified across automotive, construction equipment, and hydraulic and pneumatic systems.

Order part number H70241, sold individually. Unit weight is approximately 3.8458 g and nominal inside diameter is listed as 3 7/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.