-340 RED SILICONE 70D FDA O-RING

APG stocks the S70FDA340, an AS568-340 red Silicone 70 Shore A O-Ring built to an inside diameter of 3.35 in (85.09 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.77 in (95.76 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists extreme heat and cold, many oxidizing chemicals, and weathering. That behavior comes from the compound itself: Silicone offers flexibility that holds at very low temperatures, physiological inertness and low toxicity. Service temperature is rated from -80°F (-62.2°C) through 450°F (232.2°C).

The compound meets FDA requirements for food contact under 21 CFR 177.2600. You will find this material specified across medical devices, electronics and electrical enclosures, and sanitary process lines.

S70FDA340 ships individually. Unit weight is approximately 8.926 g and nominal inside diameter is listed as 3 3/8 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.