SH70903 is an AS568-903 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring built to an inside diameter of 0.301 in (7.65 mm), a cross section of 0.064 in (1.63 mm), and an outside diameter of 0.429 in (10.9 mm). In service, this quad-ring provides a dual sealing band on each contact face for improved reliability.
Expect good resistance to hydraulic fluids, many alcohols, and propane and butane. Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).
Maintenance and OEM teams specify it across construction equipment, automotive, and general industrial maintenance.
Order part number SH70903, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description 568-903 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.064 inch (1.63 mm)
Actual_ID 0.301 inch (7.65 mm)
Actual_OD 0.429 inch (10.9 mm)
ProductCode Description O-Rings - Square/Quad - Commodity