568-120 FKM 75 SQUARE CUT RINGS

APG stocks the SV70120, an AS568-120 black Viton® (FKM) 70 Shore A Square-Cut Ring supplied with an inside diameter of 0.987 in (25.07 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.193 in (30.3 mm). A square-cut ring provides an economical lathe-cut alternative where a moulded o-ring is not required.

The material holds up against petroleum oils and fuels, chlorinated solvents, and aromatic hydrocarbons. Viton® (FKM) is specified for very low compression set at elevated temperature, excellent resistance to compression set and permeation. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Applications involving amines or ketones and esters call for a different compound. 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.

It sees regular use in chemical processing, automotive fuel systems, and semiconductor equipment.

This item is sold individually under part number SV70120. Review your operating media and conditions against this specification before installation.