568-159 BUNA 70 SQUARE CUT RINGS

Ordered as SH70159, this is an AS568-159 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring with an inside diameter of 4.987 in (126.67 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 5.193 in (131.9 mm). The quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

As a material, Buna-N (Nitrile) is valued for strong abrasion and tear resistance, reliable performance in both static and dynamic service. The compound resists propane and butane, petroleum-based oils, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or strong acids.

Typical settings include construction equipment, fluid power, and hydraulic and pneumatic systems.

Order part number SH70159, sold individually. Unit weight is approximately 3.1883 g and nominal inside diameter is listed as 5 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.