Buna 70-034-Black-Pk25

Ordered as SB-H70034-25, this is an AS568-034 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 2.114 in (53.7 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.254 in (57.25 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint. Supplementary detail from the product record: 0.070CSX2.114"IDX2.254"OD.

The material holds up against hydraulic fluids, propane and butane, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

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

SB-H70034-25 ships by the bag. Nominal inside diameter is listed as 2 1/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.