568-121 BUNA 70 SQUARE CUT RINGS

APG stocks the SH70121, an AS568-121 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring measuring an inside diameter of 1.049 in (26.64 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.255 in (31.88 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

As a material, Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. It resists propane and butane, petroleum-based oils, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

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

Order part number SH70121, sold individually. Unit weight is approximately 0.7082 g and nominal inside diameter is listed as 1 1/16 inch. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.