568-215 FKM 75 SQUARE CUT RINGS

Part number SV70215 is an AS568-215 black Viton® (FKM) 70 Shore A Square-Cut Ring measuring an inside diameter of 1.046 in (26.57 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.324 in (33.63 mm). A square-cut ring offers greater contact area against the gland wall than an equivalent o-ring.

As a material, Viton® (FKM) offers very low compression set at elevated temperature and outstanding high-temperature capability. It resists petroleum oils and fuels, many acids, and engine and transmission fluids. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where hot water and steam or ketones and esters are present. The profile itself contributes a rectangular section that will not roll in the groove and greater resistance to extrusion than a round section of the same size. 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 aerospace, high-temperature process equipment, and chemical processing.

Stocked as SV70215 and sold individually. Nominal inside diameter is listed as 1 1/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.