-331 RED SILICONE 70D FDA O-RING

APG stocks the S70FDA331, an AS568-331 red Silicone 70 Shore A O-Ring supplied with an inside diameter of 2.225 in (56.52 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.645 in (67.18 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

This material stands up to extreme heat and cold, weathering, and many oxidizing chemicals. That behavior comes from the compound itself: Silicone is known for flexibility that holds at very low temperatures, physiological inertness and low toxicity. Continuous operating temperature is published at -80°F (-62.2°C) to 450°F (232.2°C).

This o-ring meets FDA requirements for food contact under 21 CFR 177.2600. Maintenance and OEM teams specify it across electronics and electrical enclosures, pharmaceutical manufacturing, and food and beverage processing.

Order part number S70FDA331, sold individually. Unit weight is approximately 5.97 g and nominal inside diameter is listed as 2 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.