568-229 BUNA 70 SQUARE CUT RINGS

APG stocks the SH70229, an AS568-229 black Buna-N (Nitrile) 70 Shore A Square-Cut Ring supplied with an inside diameter of 2.359 in (59.92 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.637 in (66.98 mm). A square-cut ring offers greater contact area against the gland wall than an equivalent o-ring.

It resists water, propane and butane, and petroleum-based oils. Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, reliable performance in both static and dynamic service. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with strong acids or polar solvents. The profile itself contributes greater resistance to extrusion than a round section of the same size and a rectangular section that will not roll in the groove. Note that a square section is less suited to high-speed rotary service, where the larger contact area raises friction and heat.

Maintenance and OEM teams specify it across construction equipment, agricultural equipment, and general industrial maintenance.

Order part number SH70229, sold individually. Unit weight is approximately 2.8718 g and nominal inside diameter is listed as 2 3/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.