-420 RED SILICONE 70D FDA O-RING

This o-ring is supplied in AS568-420 red Silicone 70 Shore A with an inside diameter of 3.85 in (97.79 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.4 in (111.76 mm), catalogued under part number S70FDA420. It compresses into its gland to block fluid or gas migration across a joint.

Silicone is specified here for very good compression set resistance across its range and exceptionally wide service temperature range. It resists dry heat, weathering, and extreme heat and cold. Service temperature is rated from -80°F (-62.2°C) through 450°F (232.2°C). It is not the right choice where steam above its rated range or abrasive dynamic service are present.

This item meets FDA requirements for food contact under 21 CFR 177.2600. Typical settings include electronics and electrical enclosures, food and beverage processing, and medical devices.

This item is sold individually under part number S70FDA420. Unit weight is approximately 17.701 g and nominal inside diameter is listed as 3 7/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.