Q-314 BUNA 70 Q RING

Ordered as QH70314, this is an AS568-314 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 0.725 in (18.42 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.145 in (29.08 mm). The quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, economical choice for high-volume maintenance programs. The compound resists greases and lubricants, many alcohols, 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 ketones or strong acids. The profile itself contributes lower compressive load required to achieve a seal and two sealing bands per contact face rather than one.

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

Order part number QH70314, sold individually. Unit weight is approximately 2.0335 g and nominal inside diameter is listed as 3/4 inch. Review your operating media and conditions against this specification before installation.