This quad-ring is supplied in AS568-167 black Viton® (FKM) 70 Shore A square profile measuring an inside diameter of 6.987 in (177.47 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 7.193 in (182.7 mm), catalogued under part number SV70167. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.
Viton® (FKM) is specified here for very low compression set at elevated temperature and long service life in hot, chemically aggressive environments. Expect good resistance to engine and transmission fluids, many acids, and petroleum oils and fuels. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. Applications involving low-molecular-weight organic acids or ketones and esters call for a different compound.
Common environments for this compound include semiconductor equipment, oil and gas, and automotive fuel systems.
Order part number SV70167, sold individually. Review your operating media and conditions against this specification before installation.
description 568-167 FKM 75 SQUARE CUT RINGS
Actual_CS 0.103 inch (2.62 mm)
Actual_ID 6.987 inch (177.47 mm)
Actual_OD 7.193 inch (182.7 mm)
ProductCode Description O-Rings - Square/Quad - Commodity