The SV70447 is an AS568-447 black Viton® (FKM) 70 Shore A Square-Cut Ring measuring an inside diameter of 8.975 in (227.97 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 9.525 in (241.94 mm). This square-cut ring presents a flat rectangular section that cannot roll or twist in its groove, making it a dependable static seal.
Viton® (FKM) is valued for the industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. It resists aromatic hydrocarbons, aggressive chemicals, and many acids. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). The profile itself contributes greater resistance to extrusion than a round section of the same size and simple lathe-cut manufacture at low tooling cost. Note that a square section is less suited to high-speed rotary service, where the larger contact area raises friction and heat.
Common environments for this compound include chemical processing, oil and gas, and semiconductor equipment.
Reference part number SV70447 when ordering; the item is sold individually. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description -447 BLACK FKM 70D SQUARE RING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 8.975 inch (227.97 mm)
Actual Outside Diameter 9.525 inch (241.94 mm)
Measurement System Imperial
Product Category O-Rings - Square/Quad - Commodity