Q-337 BUNA 70 Q RING

Ordered as QH70337, this is an AS568-337 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring measuring an inside diameter of 2.975 in (75.57 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.395 in (86.23 mm). The quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

The material holds up against propane and butane, greases and lubricants, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or strong acids.

Maintenance and OEM teams specify it across general industrial maintenance, construction equipment, and fluid power.

QH70337 ships individually. Unit weight is approximately 7.568 g and nominal inside diameter is listed as 3 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.