568-350 BUNA 70 SQUARE CUT RINGS

Ordered as SH70350, this is an AS568-350 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring built to an inside diameter of 4.6 in (116.84 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.02 in (127.51 mm). The quad-ring provides a dual sealing band on each contact face for improved reliability.

Expect good resistance to hydraulic fluids, greases and lubricants, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with strong acids or automotive brake fluid.

You will find this material specified across agricultural equipment, general industrial maintenance, and fluid power.

Reference part number SH70350 when ordering; the item is sold individually. Unit weight is approximately 10.526 g and nominal inside diameter is listed as 4 5/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.