-338 RED SILICONE 70D FDA O-RING

Ordered as S70FDA338, this is an AS568-338 red Silicone 70 Shore A O-Ring measuring an inside diameter of 3.1 in (78.74 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.52 in (89.41 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Silicone is specified here for physiological inertness and low toxicity, very good compression set resistance across its range. This material stands up to extreme heat and cold, many oxidizing chemicals, and dry heat. Service temperature is rated from -80°F (-62.2°C) through 450°F (232.2°C). Verify compatibility before use with concentrated acids or abrasive dynamic service.

The compound meets FDA requirements for food contact under 21 CFR 177.2600. Maintenance and OEM teams specify it across food and beverage processing, ovens and heated equipment, and electronics and electrical enclosures.

Order part number S70FDA338, sold individually. Unit weight is approximately 8.28 g and nominal inside diameter is listed as 3 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.