-018 RED SILICONE 70D FDA O-RING

S70FDA018 is an AS568-018 red Silicone 70 Shore A O-Ring measuring an inside diameter of 0.739 in (18.77 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.879 in (22.33 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

The material holds up against weathering, extreme heat and cold, and ozone and UV exposure. That behavior comes from the compound itself: Silicone is widely chosen for physiological inertness and low toxicity, an exceptionally wide service temperature range. Published continuous service range is -80°F (-62.2°C) to 450°F (232.2°C). Exposure to abrasive dynamic service or hydrocarbon fuels and oils will shorten service life.

The compound meets FDA requirements for food contact under 21 CFR 177.2600. You will find this material specified across ovens and heated equipment, food and beverage processing, and sanitary process lines.

Reference part number S70FDA018 when ordering; the item is sold individually. Unit weight is approximately 0.23 g and nominal inside diameter is listed as 3/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.