-347 RED SILICONE 70D FDA O-RING

APG stocks the S70FDA347, an AS568-347 red Silicone 70 Shore A O-Ring built to an inside diameter of 4.225 in (107.32 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.645 in (117.98 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

It resists extreme heat and cold, many oxidizing chemicals, and dry heat. That behavior comes from the compound itself: Silicone is valued for physiological inertness and low toxicity, excellent electrical insulating properties. Rated temperature range runs from -80°F (-62.2°C) to 450°F (232.2°C) in continuous service. It is not the right choice where abrasive dynamic service or steam above its rated range are present.

This item meets FDA requirements for food contact under 21 CFR 177.2600. Common environments for this compound include medical devices, food and beverage processing, and ovens and heated equipment.

Reference part number S70FDA347 when ordering; the item is sold individually. Unit weight is approximately 10.7 g. Check the compound against your process media, pressure and temperature before committing to a design.