-391 RED SILICONE 70D O-RING

S70391 is an AS568-391 red Silicone 70 Shore A O-Ring measuring an inside diameter of 21.953 in (557.61 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 22.373 in (568.27 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

This material stands up to ozone and UV exposure, weathering, and extreme heat and cold. Silicone is known for an exceptionally wide service temperature range and excellent electrical insulating properties. The material carries a published service range of -80°F (-62.2°C) to 450°F (232.2°C). Exposure to hydrocarbon fuels and oils or steam above its rated range will shorten service life.

It sees regular use in food and beverage processing, medical devices, and pharmaceutical manufacturing.

Reference part number S70391 when ordering; the item is sold individually. Unit weight is approximately 57.36 g and nominal inside diameter is listed as 22 inch. 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.