-253 RED SILICONE 70D FDA O-RING

Ordered as S70FDA253, this is an AS568-253 red Silicone 70 Shore A O-Ring measuring an inside diameter of 5.359 in (136.12 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.637 in (143.18 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

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

This item meets FDA requirements for food contact under 21 CFR 177.2600. Common environments for this compound include ovens and heated equipment, electronics and electrical enclosures, and sanitary process lines.

Order part number S70FDA253, sold individually. Unit weight is approximately 5.985 g and nominal inside diameter is listed as 5 3/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.