-439 RED SILICONE 70D O-RING

APG stocks the S70MD439, an AS568-439 red Silicone 70 Shore A O-Ring supplied with an inside diameter of 6.475 in (164.47 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 7.025 in (178.44 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

Silicone is known for an exceptionally wide service temperature range and excellent electrical insulating properties. This material stands up to dry heat, weathering, and ozone and UV exposure. Rated temperature range runs from -80°F (-62.2°C) to 450°F (232.2°C) in continuous service. Applications involving concentrated acids or steam above its rated range call for a different compound.

The compound is metal detectable for HACCP and foreign-body control programs. Maintenance and OEM teams specify it across medical devices, electronics and electrical enclosures, and pharmaceutical manufacturing.

This item is sold individually under part number S70MD439. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.