*Q-037 BUNA 70 Q RING

QH70037 is an AS568-037 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 2.489 in (63.22 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.629 in (66.78 mm). In service, this quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

Buna-N (Nitrile) is valued for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. The compound resists greases and lubricants, water, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 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.

Common environments for this compound include general industrial maintenance, construction equipment, and agricultural equipment.

Order part number QH70037, sold individually. Unit weight is approximately 0.6259 g and nominal inside diameter is listed as 2 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.