This quad-ring is supplied in AS568-237 black Buna-N (Nitrile) 70 Shore A square profile measuring an inside diameter of 3.359 in (85.32 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.637 in (92.38 mm), catalogued under part number SH70237. It seats in a standard o-ring gland while offering improved dynamic performance.
This material stands up to many alcohols, propane and butane, and hydraulic fluids. Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or ozone and direct sunlight will shorten service life.
You will find this material specified across automotive, fluid power, and hydraulic and pneumatic systems.
Order part number SH70237, sold individually. Unit weight is approximately 4.0241 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
description 568-237 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 3.359 inch (85.32 mm)
Actual_OD 3.637 inch (92.38 mm)
ProductCode Description O-Rings - Square/Quad - Commodity