-040 RED SILICONE 70D FDA O-RING

The S70FDA040 is an AS568-040 red Silicone 70 Shore A O-Ring with an inside diameter of 2.864 in (72.75 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.004 in (76.3 mm). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

This material stands up to extreme heat and cold, ozone and UV exposure, and many oxidizing chemicals. That behavior comes from the compound itself: Silicone is specified for physiological inertness and low toxicity, very good compression set resistance across its range. Published continuous service range is -80°F (-62.2°C) to 450°F (232.2°C). Exposure to abrasive dynamic service or concentrated acids will shorten service life.

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

Stocked as S70FDA040 and sold individually. Unit weight is approximately 0.8548 g and nominal inside diameter is listed as 2 7/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.