568-349 BUNA 70 SQUARE CUT RINGS

Ordered as SH70349, this is an AS568-349 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring built to an inside diameter of 4.475 in (113.67 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.895 in (124.33 mm). The quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, economical choice for high-volume maintenance programs. The material holds up against water, greases and lubricants, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

It sees regular use in hydraulic and pneumatic systems, general industrial maintenance, and construction equipment.

Stocked as SH70349 and sold individually. Unit weight is approximately 12.326 g and nominal inside diameter is listed as 4 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.