*Q-049 BUNA 70 Q RING

Part number QH70049 is an AS568-049 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 4.989 in (126.72 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 5.129 in (130.28 mm). A quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

This material stands up to greases and lubricants, hydraulic fluids, and many alcohols. Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ketones or ozone and direct sunlight. The profile itself contributes lower compressive load required to achieve a seal and a parting line located away from the sealing surface.

Typical settings include construction equipment, agricultural equipment, and automotive.

Stocked as QH70049 and sold individually. Unit weight is approximately 1.2661 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.