568-012 FKM 75 SQUARE CUT RINGS

Part number SV70012 is an AS568-012 black Viton® (FKM) 70 Shore A Square-Cut Ring supplied with an inside diameter of 0.364 in (9.25 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.504 in (12.8 mm). A square-cut ring presents a flat rectangular section that cannot roll or twist in its groove, making it a dependable static seal.

The material holds up against aggressive chemicals, many acids, and chlorinated solvents. Viton® (FKM) is specified for the industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Applications involving hot water and steam or amines call for a different compound. The profile itself contributes a rectangular section that will not roll in the groove and a flat contact band that spreads sealing load across a wider area. Note that a square section is less suited to high-speed rotary service, where the larger contact area raises friction and heat.

It sees regular use in aerospace, oil and gas, and chemical processing.

Stocked as SV70012 and sold individually. Nominal inside diameter is listed as 3/8 inch. Check the compound against your process media, pressure and temperature before committing to a design.