Q-244 BUNA 70 Q RING

Ordered as QH70244, this is an AS568-244 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 4.234 in (107.54 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.512 in (114.6 mm). The quad-ring provides a dual sealing band on each contact face for improved reliability.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, low compression set under sustained load. It resists water, greases and lubricants, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving polar solvents or automotive brake fluid call for a different compound. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and lower compressive load required to achieve a seal.

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

This item is sold individually under part number QH70244. Unit weight is approximately 3.9094 g. Check the compound against your process media, pressure and temperature before committing to a design.