Part number SV70283 is an AS568-283 black Viton® (FKM) 70 Shore A square profile Quad-Ring built to an inside diameter of 16.955 in (430.66 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 17.233 in (437.72 mm). A quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.
Viton® (FKM) is specified here for outstanding high-temperature capability, excellent resistance to compression set and permeation. It resists many acids, engine and transmission fluids, and aromatic hydrocarbons. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where low-molecular-weight organic acids or ketones and esters are present.
Common environments for this compound include high-temperature process equipment, chemical processing, and automotive fuel systems.
Reference part number SV70283 when ordering; the item is sold individually. Nominal inside diameter is listed as 17 inch. 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 568-283 FKM 75 SQUARE CUT RINGS
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 16.955 inch (430.66 mm)
Actual_OD 17.233 inch (437.72 mm)
ProductCode Description O-Rings - Square/Quad - Commodity