-258 RED SILICONE 70D O-RING

This o-ring is supplied in AS568-258 red Silicone 70 Shore A supplied with an inside diameter of 5.984 in (151.99 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 6.262 in (159.05 mm), catalogued under part number S70MD258. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The material holds up against ozone and UV exposure, extreme heat and cold, and many oxidizing chemicals. That behavior comes from the compound itself: Silicone delivers 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 steam above its rated range or concentrated acids will shorten service life.

The compound is metal detectable for HACCP and foreign-body control programs. Typical settings include medical devices, pharmaceutical manufacturing, and sanitary process lines.

Order part number S70MD258, sold individually. Nominal inside diameter is listed as 6 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. 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.