568-363 BUNA 70 SQUARE CUT RINGS

The SH70363 is an AS568-363 black Buna-N (Nitrile) 70 Shore A Square-Cut Ring supplied with an inside diameter of 6.475 in (164.47 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 6.895 in (175.13 mm). This square-cut ring offers greater contact area against the gland wall than an equivalent o-ring.

The material holds up against greases and lubricants, hydraulic fluids, and many alcohols. Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). The profile itself contributes a rectangular section that will not roll in the groove and greater resistance to extrusion than a round section of the same size. Note that a square section is less suited to high-speed rotary service, where the larger contact area raises friction and heat.

You will find this material specified across agricultural equipment, automotive, and construction equipment.

Stocked as SH70363 and sold individually. Unit weight is approximately 14.776 g and nominal inside diameter is listed as 6 1/2 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.