568-918 BUNA 70 SQUARE CUT RINGS

This quad-ring is supplied in AS568-918 black Buna-N (Nitrile) 70 Shore A square profile with an inside diameter of 1.355 in (34.42 mm), a cross section of 0.116 in (2.95 mm), and an outside diameter of 1.587 in (40.31 mm), catalogued under part number SH70918. It delivers lower friction and better sealing stability than a comparable round-section o-ring.

Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Expect good resistance to water, propane and butane, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

Maintenance and OEM teams specify it across construction equipment, hydraulic and pneumatic systems, and fluid power.

Stocked as SH70918 and sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.