568-365 BUNA 70 SQUARE CUT RINGS

This quad-ring is supplied in AS568-365 black Buna-N (Nitrile) 70 Shore A square profile with an inside diameter of 6.975 in (177.17 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 7.395 in (187.83 mm), catalogued under part number SH70365. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

As a material, Buna-N (Nitrile) is specified for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. It resists propane and butane, many alcohols, and hydraulic fluids. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or ketones call for a different compound.

Common environments for this compound include agricultural equipment, construction equipment, and automotive.

Reference part number SH70365 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design.