568-362 BUNA 70 SQUARE CUT RINGS

Part number SH70362 is an AS568-362 black Buna-N (Nitrile) 70 Shore A Square-Cut Ring supplied with an inside diameter of 6.225 in (158.12 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 6.645 in (168.78 mm). A square-cut ring presents a flat rectangular section that cannot roll or twist in its groove, making it a dependable static seal.

As a material, Buna-N (Nitrile) offers strong abrasion and tear resistance, low compression set under sustained load. The compound resists water, propane and butane, and petroleum-based oils. 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 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.

Common environments for this compound include agricultural equipment, construction equipment, and automotive.

Stocked as SH70362 and sold individually. Unit weight is approximately 13.3766 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.