-349 RED SILICONE 70D O-RING

Ordered as S70349, this is an AS568-349 red Silicone 70 Shore A O-Ring built to an inside diameter of 4.475 in (113.67 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.895 in (124.33 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Silicone is specified here for excellent electrical insulating properties and exceptionally wide service temperature range. The compound resists many oxidizing chemicals, dry heat, and weathering. The material carries a published service range of -80°F (-62.2°C) to 450°F (232.2°C). It is not the right choice where concentrated acids or abrasive dynamic service are present.

Maintenance and OEM teams specify it across ovens and heated equipment, pharmaceutical manufacturing, and medical devices.

This item is sold individually under part number S70349. Unit weight is approximately 11.523 g and nominal inside diameter is listed as 4 1/2 inch. Review your operating media and conditions against this specification before 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.