4MM CS X 30MM ID RED SILICONE 70D

Ordered as S4X30, this is a red Silicone 70 Shore A O-Ring supplied with an inside diameter of 30 mm (1.181 in), a cross section of 4 mm (0.157 in), and an outside diameter of 38 mm (1.5 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to weathering, dry heat, and ozone and UV exposure. That behavior comes from the compound itself: Silicone is specified for very good compression set resistance across its range and flexibility that holds at very low temperatures. The material carries a published service range of -80°F (-62.2°C) to 450°F (232.2°C). Exposure to abrasive dynamic service or steam above its rated range will shorten service life.

The compound meets FDA requirements for food contact. Maintenance and OEM teams specify it across pharmaceutical manufacturing, ovens and heated equipment, and food and beverage processing.

Order part number S4X30, sold individually. Unit weight is approximately 1.8543 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.