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, is metal detectable for HACCP and foreign-body control programs. 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.
description -018 RED SILICONE 70D FDA O-RING
uf_description2 COMPLIANT TO 21CFR SEC 177-2600, 0.070" (1.78MM) CS X 0.739" (18.77MM) ID
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 0.739 inch (18.77 mm)
Actual_OD 0.879 inch (22.33 mm)
ProductCode Description O-Rings - FDA / Metal Detectable