Q-246 BUNA 70 Q RING

QH70246 is an AS568-246 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 4.484 in (113.89 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.762 in (120.95 mm). In service, this quad-ring provides a dual sealing band on each contact face for improved reliability.

Expect good resistance to hydraulic fluids, greases and lubricants, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) delivers strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving ozone and direct sunlight or strong acids call for a different compound. The profile itself contributes a parting line located away from the sealing surface and resistance to the spiral twisting that defeats round-section rings.

Typical settings include fluid power, general industrial maintenance, and agricultural equipment.

This item is sold individually under part number QH70246. Unit weight is approximately 4.792 g. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.