Part number SH70373 is an AS568-373 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring with an inside diameter of 8.975 in (227.97 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.395 in (238.63 mm). A quad-ring seats in a standard o-ring gland while offering improved dynamic performance.
Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer and economical choice for high-volume maintenance programs. The material holds up against propane and butane, greases and lubricants, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or polar solvents call for a different compound.
Typical settings include general industrial maintenance, fluid power, and automotive.
Stocked as SH70373 and sold individually. Nominal inside diameter is listed as 9 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 568-373 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 8.975 inch (227.97 mm)
Actual_OD 9.395 inch (238.63 mm)
ProductCode Description O-Rings - Square/Quad - Commodity