568-453 BUNA 70 SQUARE CUT RINGS

Part number SH70453 is an AS568-453 black Buna-N (Nitrile) 70 Shore A Square-Cut Ring measuring an inside diameter of 11.975 in (304.17 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 12.525 in (318.14 mm). A square-cut ring seals with a broad flat contact band instead of the line contact of a round-section ring.

As a material, Buna-N (Nitrile) offers strong abrasion and tear resistance, reliable performance in both static and dynamic service. It resists greases and lubricants, water, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). The profile itself contributes simple lathe-cut manufacture at low tooling cost and a flat contact band that spreads sealing load across a wider area. 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, automotive, and hydraulic and pneumatic systems.

This item is sold individually under part number SH70453. Nominal inside diameter is listed as 12 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.