568-112 BUNA 70 SQUARE CUT RINGS

This square-cut ring is supplied in AS568-112 black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 0.487 in (12.37 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.693 in (17.6 mm), catalogued under part number SH70112. It provides an economical lathe-cut alternative where a moulded o-ring is not required.

The material holds up against propane and butane, petroleum-based oils, and water. That behavior comes from the compound itself: Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). The profile itself contributes simple lathe-cut manufacture at low tooling cost and greater resistance to extrusion than a round section of the same size. Note that a square section is less suited to high-speed rotary service, where the larger contact area raises friction and heat.

Maintenance and OEM teams specify it across agricultural equipment, general industrial maintenance, and automotive.

Reference part number SH70112 when ordering; the item is sold individually. Unit weight is approximately 0.3679 g and nominal inside diameter is listed as 1/2 inch. Review your operating media and conditions against this specification before installation.