Part number SH70911 is an AS568-911 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring supplied with an inside diameter of 0.863 in (21.92 mm), a cross section of 0.116 in (2.95 mm), and an outside diameter of 1.095 in (27.81 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.
Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, low compression set under sustained load. Expect good resistance to hydraulic fluids, many alcohols, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).
You will find this material specified across construction equipment, agricultural equipment, and general industrial maintenance.
Stocked as SH70911 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
description 568-911 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.116 inch (2.95 mm)
Actual_ID 0.863 inch (21.92 mm)
Actual_OD 1.095 inch (27.81 mm)
ProductCode Description O-Rings - Square/Quad - Commodity