568-430 BUNA 70 SQUARE CUT RINGS

The SH70430 is an AS568-430 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring supplied with an inside diameter of 5.1 in (129.54 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.65 in (143.51 mm). This quad-ring provides a dual sealing band on each contact face for improved reliability.

The material holds up against many alcohols, greases and lubricants, and water. Buna-N (Nitrile) is specified for low compression set under sustained load and an economical choice for high-volume maintenance programs. 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 automotive brake fluid or polar solvents are present.

It sees regular use in construction equipment, fluid power, and agricultural equipment.

Order part number SH70430, sold individually. Nominal inside diameter is listed as 5 1/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.