Buna 70-022-Black-Pk100

Ordered as SB-H70022-100, this is an AS568-022 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 0.989 in (25.12 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.129 in (28.68 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. The catalog record notes: 1.125IDX1"ODX.0625"CS.

The compound resists greases and lubricants, water, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or automotive brake fluid are present.

Common environments for this compound include hydraulic and pneumatic systems, fluid power, and agricultural equipment.

SB-H70022-100 ships by the bag. Nominal inside diameter is listed as 1 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.