568-436 BUNA 70 SQUARE CUT RINGS

SH70436 is an AS568-436 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring built to an inside diameter of 5.85 in (148.59 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.4 in (162.56 mm). In service, this quad-ring provides a dual sealing band on each contact face for improved reliability.

As a material, Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Expect good resistance to many alcohols, hydraulic fluids, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or ketones call for a different compound.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, construction equipment, and automotive.

Stocked as SH70436 and sold individually. Nominal inside diameter is listed as 5 7/8 inch. Review your operating media and conditions against this specification before installation.