This quad-ring is supplied in AS568-113 black Buna-N (Nitrile) 70 Shore A square profile supplied with an inside diameter of 0.549 in (13.94 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.755 in (19.18 mm), catalogued under part number SH70113. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.
Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The material holds up against petroleum-based oils, water, and propane and butane. 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 ozone and direct sunlight or ketones.
Maintenance and OEM teams specify it across construction equipment, fluid power, and automotive.
Order part number SH70113, sold individually. Unit weight is approximately 0.4083 g and nominal inside diameter is listed as 9/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description 568-113 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.103 inch (2.62 mm)
Actual_ID 0.549 inch (13.94 mm)
Actual_OD 0.755 inch (19.18 )
ProductCode Description O-Rings - Square/Quad - Commodity