568-352 BUNA 70 SQUARE CUT RINGS

This quad-ring is supplied in AS568-352 black Buna-N (Nitrile) 70 Shore A square profile measuring an inside diameter of 4.85 in (123.19 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.27 in (133.86 mm), catalogued under part number SH70352. It delivers lower friction and better sealing stability than a comparable round-section o-ring.

Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. It resists hydraulic fluids, many alcohols, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or automotive brake fluid.

You will find this material specified across hydraulic and pneumatic systems, automotive, and construction equipment.

SH70352 ships individually. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.