-178 RED SILICONE 70D FDA O-RING

This o-ring is supplied in AS568-178 red Silicone 70 Shore A with an inside diameter of 9.737 in (247.32 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 9.943 in (252.55 mm), catalogued under part number S70FDA178. It 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 and exceptionally wide service temperature range. The compound resists dry heat, ozone and UV exposure, and extreme heat and cold. Rated temperature range runs from -80°F (-62.2°C) to 450°F (232.2°C) in continuous service. Exposure to hydrocarbon fuels and oils or abrasive dynamic service will shorten service life.

This o-ring meets FDA requirements for food contact under 21 CFR 177.2600. You will find this material specified across electronics and electrical enclosures, ovens and heated equipment, and medical devices.

This item is sold individually under part number S70FDA178. Unit weight is approximately 5.889 g and nominal inside diameter is listed as 9 3/4 inch. Check the compound against your process media, pressure and temperature before committing to a design.