Q-173 BUNA 70 Q RING

QH70173 is an AS568-173 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 8.487 in (215.57 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 8.693 in (220.8 mm). In service, this quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) is known for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. The material holds up against propane and butane, water, and greases and lubricants. 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 two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

You will find this material specified across construction equipment, general industrial maintenance, and agricultural equipment.

Stocked as QH70173 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.