568-388 FKM 75 SQUARE CUT RINGS

The SV70388 is an AS568-388 black Viton® (FKM) 70 Shore A square profile Quad-Ring measuring an inside diameter of 18.953 in (481.41 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 19.373 in (492.07 mm). This quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

Viton® (FKM) is specified here for long service life in hot, chemically aggressive environments and industry benchmark where nitrile reaches its thermal limit. Expect good resistance to petroleum oils and fuels, engine and transmission fluids, and chlorinated solvents. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service.

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

Stocked as SV70388 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.