Part number SH70270 is an AS568-270 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring with an inside diameter of 8.984 in (228.19 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 9.262 in (235.25 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.
Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. The compound resists hydraulic fluids, many alcohols, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.
Maintenance and OEM teams specify it across agricultural equipment, general industrial maintenance, and automotive.
Reference part number SH70270 when ordering; the item is sold individually. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description 568-270 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 8.984 inch (228.19 mm)
Actual_OD 9.262 inch (235.25 mm)
ProductCode Description O-Rings - Square/Quad - Commodity