-159 RED SILICONE 70D FDA O-RING

Ordered as S70FDA159, this is an AS568-159 red Silicone 70 Shore A O-Ring measuring an inside diameter of 4.987 in (126.67 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 5.193 in (131.9 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Silicone is widely chosen for flexibility that holds at very low temperatures and very good compression set resistance across its range. It resists weathering, ozone and UV exposure, and dry heat. Service temperature is rated from -80°F (-62.2°C) through 450°F (232.2°C). Applications involving hydrocarbon fuels and oils or concentrated acids call for a different compound.

The compound meets FDA requirements for food contact under 21 CFR 177.2600. Typical settings include food and beverage processing, medical devices, and sanitary process lines.

Stocked as S70FDA159 and sold individually. Unit weight is approximately 3.19 g and nominal inside diameter is listed as 5 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.