568-112 BUNA 70 SQUARE CUT RINGS

This quad-ring is supplied in AS568-112 black Buna-N (Nitrile) 70 Shore A square profile 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 seats in a standard o-ring gland while offering improved dynamic performance.

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).

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.