-342 RED SILICONE 70D FDA O-RING

Part number S70FDA342 is an AS568-342 red Silicone 70 Shore A O-Ring built to an inside diameter of 3.6 in (91.44 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.02 in (102.11 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Silicone is valued for very good compression set resistance across its range and an exceptionally wide service temperature range. Expect good resistance to ozone and UV exposure, weathering, and dry heat. 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 hydrocarbon fuels and oils or abrasive dynamic service are present.

The compound meets FDA requirements for food contact under 21 CFR 177.2600. Maintenance and OEM teams specify it across electronics and electrical enclosures, pharmaceutical manufacturing, and food and beverage processing.

Order part number S70FDA342, sold individually. Unit weight is approximately 9.554 g and nominal inside diameter is listed as 3 5/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.