-139 RED SILICONE 70D FDA O-RING

S70FDA139 is an AS568-139 red Silicone 70 Shore A O-Ring with an inside diameter of 2.175 in (55.25 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.381 in (60.48 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Expect good resistance to extreme heat and cold, dry heat, and many oxidizing chemicals. That behavior comes from the compound itself: Silicone is valued for excellent electrical insulating properties and very good compression set resistance across its range. 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.

This item meets FDA requirements for food contact under 21 CFR 177.2600. Common environments for this compound include pharmaceutical manufacturing, sanitary process lines, and ovens and heated equipment.

Order part number S70FDA139, sold individually. Unit weight is approximately 1.353 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.