Part number QH70227 is an AS568-227 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring built to an inside diameter of 2.109 in (53.57 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.387 in (60.63 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.
Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The compound resists many alcohols, greases and lubricants, and propane and butane. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to strong acids or polar solvents will shorten service life.
Maintenance and OEM teams specify it across automotive, agricultural equipment, and construction equipment.
Stocked as QH70227 and sold individually. Unit weight is approximately 2.259 g and nominal inside diameter is listed as 2 1/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description Q-227 BUNA 70 Q RING
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 2.109 inch (53.57 mm)
Actual_OD 2.387 inch (60.63 mm)
ProductCode Description O-Rings - Square/Quad - Commodity