Part number SH70024 is an AS568-024 black Buna-N (Nitrile) 70 Shore A Square-Cut Ring supplied with an inside diameter of 1.114 in (28.3 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.254 in (31.85 mm). A square-cut ring presents a flat rectangular section that cannot roll or twist in its groove, making it a dependable static seal.
Buna-N (Nitrile) is valued for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. The compound resists petroleum-based oils, water, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving automotive brake fluid or ozone and direct sunlight call for a different compound. The profile itself contributes a rectangular section that will not roll in the groove and simple lathe-cut manufacture at low tooling cost. 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 hydraulic and pneumatic systems, construction equipment, and agricultural equipment.
Order part number SH70024, sold individually. Unit weight is approximately 0.291 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description 568-024 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 1.114 inch (28.3 mm)
Actual_OD 1.254 inch (31.85 mm)
ProductCode Description O-Rings - Square/Quad - Commodity