568-375 BUNA 70 SQUARE CUT RINGS

Part number SH70375 is an AS568-375 black Buna-N (Nitrile) 70 Shore A Square-Cut Ring measuring an inside diameter of 9.475 in (240.67 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.895 in (251.33 mm). A square-cut ring presents a flat rectangular section that cannot roll or twist in its groove, making it a dependable static seal.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, economical choice for high-volume maintenance programs. This material stands up to petroleum-based oils, water, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). The profile itself contributes a flat contact band that spreads sealing load across a wider area 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.

It sees regular use in agricultural equipment, fluid power, and general industrial maintenance.

Stocked as SH70375 and sold individually. 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.