The SH70015 is an AS568-015 black Buna-N (Nitrile) 70 Shore A Square-Cut Ring with an inside diameter of 0.551 in (14 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.691 in (17.55 mm). This square-cut ring provides an economical lathe-cut alternative where a moulded o-ring is not required.
Buna-N (Nitrile) is widely chosen for low compression set under sustained load and an economical choice for high-volume maintenance programs. The material holds up against water, hydraulic fluids, and propane and butane. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with ketones or strong acids. The profile itself contributes greater resistance to extrusion than a round section of the same size 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, automotive, and agricultural equipment.
Order part number SH70015, sold individually. Unit weight is approximately 0.172 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 568-015 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 0.551 inch (14 mm)
Actual_OD 0.691 inch (17.55 )
ProductCode Description O-Rings - Square/Quad - Commodity