This quad-ring is supplied in AS568-174 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 8.737 in (221.92 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 8.943 in (227.15 mm), catalogued under part number QH70174. It provides a dual sealing band on each contact face for improved reliability.
As a material, Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. It resists petroleum-based oils, greases and lubricants, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). The profile itself contributes lower compressive load required to achieve a seal and resistance to the spiral twisting that defeats round-section rings.
Typical settings include fluid power, automotive, and hydraulic and pneumatic systems.
QH70174 ships individually. Nominal inside diameter is listed as 8 3/4 inch. Review your operating media and conditions against this specification before installation.
Description Q-174 BUNA 70 Q RING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 8.737 inch (221.92 mm)
Actual Outside Diameter 8.943 inch (227.15 mm)
Measurement System Imperial
Product Category O-Rings - Square/Quad - Commodity