-272 RED SILICONE 70D FDA O-RING

The S70FDA272 is an AS568-272 red Silicone 70 Shore A O-Ring with an inside diameter of 9.484 in (240.89 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 9.762 in (247.95 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Silicone is specified here for very good compression set resistance across its range, physiological inertness and low toxicity. The compound resists extreme heat and cold, weathering, and dry heat. The material carries a published service range of -80°F (-62.2°C) to 450°F (232.2°C).

The compound meets FDA requirements for food contact under 21 CFR 177.2600. It sees regular use in pharmaceutical manufacturing, electronics and electrical enclosures, and ovens and heated equipment.

Stocked as S70FDA272 and sold individually. Unit weight is approximately 10.38 g and nominal inside diameter is listed as 9 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.