APG stocks the S70228, an AS568-228 red Silicone 70 Shore A O-Ring supplied with an inside diameter of 2.234 in (56.74 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.512 in (63.8 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
As a material, Silicone is widely chosen for excellent electrical insulating properties and flexibility that holds at very low temperatures. Expect good resistance to weathering, dry heat, and extreme heat and cold. Service temperature is rated from -80°F (-62.2°C) through 450°F (232.2°C). It is not the right choice where hydrocarbon fuels and oils or abrasive dynamic service are present.
You will find this material specified across ovens and heated equipment, sanitary process lines, and pharmaceutical manufacturing.
S70228 ships individually. Unit weight is approximately 2.583 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description -228 RED SILICONE 70D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 2.234 inch (56.74 mm)
Actual Outside Diameter 2.512 inch (63.8 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity