Part number SH70323 is an AS568-323 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring measuring an inside diameter of 1.287 in (32.69 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.707 in (43.36 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.
Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer and low compression set under sustained load. The material holds up against hydraulic fluids, many alcohols, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or ozone and direct sunlight are present.
Maintenance and OEM teams specify it across construction equipment, agricultural equipment, and fluid power.
This item is sold individually under part number SH70323. Nominal inside diameter is listed as 1 5/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
description 568-323 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 1.287 inch (32.69 mm)
Actual_OD 1.707 inch (43.36 mm)
ProductCode Description O-Rings - Square/Quad - Commodity