APG stocks the H70035, an AS568-035 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 2.239 in (56.87 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.379 in (60.43 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.
As a material, Buna-N (Nitrile) is known for low compression set under sustained load and an economical choice for high-volume maintenance programs. Expect good resistance to many alcohols, hydraulic fluids, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or strong acids.
It sees regular use in hydraulic and pneumatic systems, fluid power, and automotive.
H70035 ships individually. Unit weight is approximately 0.566 g and nominal inside diameter is listed as 2 1/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description -035 BLACK BUNA 70D O-RING
Actual Cross Section 0.07 inch (1.78 mm)
Actual Inside Diameter 2.239 inch (56.87 mm)
Actual Outside Diameter 2.379 inch (60.43 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity