Q-269 BUNA 70 Q RING

The QH70269 is an AS568-269 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 8.734 in (221.84 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 9.012 in (228.9 mm). This quad-ring provides a dual sealing band on each contact face for improved reliability.

Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The material holds up against greases and lubricants, petroleum-based oils, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. 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 fluid power, hydraulic and pneumatic systems, and general industrial maintenance.

Reference part number QH70269 when ordering; the item is sold individually. Unit weight is approximately 9.26 g and nominal inside diameter is listed as 8 3/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.