568-133 BUNA 70 SQUARE CUT RINGS

APG stocks the SH70133, an AS568-133 black Buna-N (Nitrile) 70 Shore A Square-Cut Ring with an inside diameter of 1.799 in (45.69 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.005 in (50.93 mm). A square-cut ring provides an economical lathe-cut alternative where a moulded o-ring is not required.

As a material, Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, strong abrasion and tear resistance. The material holds up against petroleum-based oils, water, and hydraulic fluids. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or polar solvents call for a different compound. The profile itself contributes greater resistance to extrusion than a round section of the same size and a rectangular section that will not roll in the groove. Note that a square section is less suited to high-speed rotary service, where the larger contact area raises friction and heat.

Typical settings include agricultural equipment, construction equipment, and automotive.

SH70133 ships individually. Unit weight is approximately 0.7831 g and nominal inside diameter is listed as 1 13/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.