Q-467 BUNA 70 Q RING

Ordered as QH70467, this is an AS568-467 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 18.955 in (481.46 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 19.505 in (495.43 mm). The quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

This material stands up to propane and butane, hydraulic fluids, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ketones. The profile itself contributes lower compressive load required to achieve a seal and a parting line located away from the sealing surface.

It sees regular use in general industrial maintenance, hydraulic and pneumatic systems, and automotive.

This item is sold individually under part number QH70467. Nominal inside diameter is listed as 19 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.