568-124 BUNA 70 SQUARE CUT RINGS

Part number SH70124 is an AS568-124 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring with an inside diameter of 1.237 in (31.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.443 in (36.65 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

The material holds up against hydraulic fluids, greases and lubricants, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is known for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where polar solvents or ketones are present.

Common environments for this compound include construction equipment, hydraulic and pneumatic systems, and general industrial maintenance.

SH70124 ships individually. Unit weight is approximately 0.5462 g and nominal inside diameter is listed as 1 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.