*568-315 BUNA 70 SQUARE CUT RINGS

This quad-ring is supplied in AS568-315 black Buna-N (Nitrile) 70 Shore A square profile measuring an inside diameter of 0.787 in (19.99 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.207 in (30.66 mm), catalogued under part number SH70315. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

It resists petroleum-based oils, propane and butane, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) delivers strong abrasion and tear resistance, reliable performance in both static and dynamic service. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with polar solvents or ketones.

It sees regular use in hydraulic and pneumatic systems, construction equipment, and automotive.

Order part number SH70315, sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.