Ordered as SH70042, this is an AS568-042 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring measuring an inside diameter of 3.239 in (82.27 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.379 in (85.83 mm). The quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.
As a material, Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. It resists greases and lubricants, many alcohols, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).
Typical settings include fluid power, construction equipment, and agricultural equipment.
Stocked as SH70042 and sold individually. Unit weight is approximately 0.804 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
description 568-042 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 3.239 inch (82.27 mm)
Actual_OD 3.379 inch (85.83 mm)
ProductCode Description O-Rings - Square/Quad - Commodity