Q-320 BUNA 70 Q RING

QH70320 is an AS568-320 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 1.1 in (27.94 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.52 in (38.61 mm). In service, this quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

The material holds up against petroleum-based oils, greases and lubricants, and propane and butane. Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ketones. The profile itself contributes two sealing bands per contact face rather than one and a parting line located away from the sealing surface.

You will find this material specified across automotive, construction equipment, and hydraulic and pneumatic systems.

Reference part number QH70320 when ordering; the item is sold individually. Unit weight is approximately 2.8778 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.