Q-111 BUNA 70 Q RING

Ordered as QH70111, this is an AS568-111 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 0.424 in (10.77 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.63 in (16 mm). The quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

As a material, Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, strong abrasion and tear resistance. The material holds up against propane and butane, many alcohols, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving strong acids or polar solvents call for a different compound. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and a parting line located away from the sealing surface.

It sees regular use in automotive, general industrial maintenance, and fluid power.

This item is sold individually under part number QH70111. Unit weight is approximately 0.2917 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.