-311 RED SILICONE 70D O-RING

Part number S70MD311 is an AS568-311 red Silicone 70 Shore A O-Ring measuring an inside diameter of 0.537 in (13.64 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 0.957 in (24.31 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Silicone is specified here for very good compression set resistance across its range, physiological inertness and low toxicity. Expect good resistance to many oxidizing chemicals, weathering, and dry heat. Published continuous service range is -80°F (-62.2°C) to 450°F (232.2°C). Applications involving hydrocarbon fuels and oils or abrasive dynamic service call for a different compound.

The compound is metal detectable for HACCP and foreign-body control programs. Typical settings include medical devices, electronics and electrical enclosures, and ovens and heated equipment.

S70MD311 ships individually. Nominal inside diameter is listed as 9/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.