-421 RED SILICONE 70D FDA O-RING

Part number S70FDA421 is an AS568-421 red Silicone 70 Shore A O-Ring measuring an inside diameter of 3.975 in (100.97 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.525 in (114.94 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The material holds up against dry heat, extreme heat and cold, and ozone and UV exposure. That behavior comes from the compound itself: Silicone is known for excellent electrical insulating properties and an exceptionally wide service temperature range. Rated temperature range runs from -80°F (-62.2°C) to 450°F (232.2°C) in continuous service. It should not be specified for service in abrasive dynamic service or concentrated acids.

This o-ring meets FDA requirements for food contact under 21 CFR 177.2600. You will find this material specified across electronics and electrical enclosures, ovens and heated equipment, and medical devices.

This item is sold individually under part number S70FDA421. Unit weight is approximately 18.241 g. 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.