Q-436 BUNA 70 Q RING

The QH70436 is an AS568-436 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 5.85 in (148.59 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.4 in (162.56 mm). This quad-ring provides a dual sealing band on each contact face for improved reliability.

The compound resists propane and butane, greases and lubricants, and petroleum-based oils. Buna-N (Nitrile) offers strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with strong acids or polar solvents. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and a parting line located away from the sealing surface.

Typical settings include hydraulic and pneumatic systems, construction equipment, and agricultural equipment.

QH70436 ships individually. Unit weight is approximately 22.98 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.