Ordered as S70MD409, this is an AS568-409 red Silicone 70 Shore A O-Ring measuring an inside diameter of 2.475 in (62.87 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 3.025 in (76.84 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Silicone is specified here for excellent electrical insulating properties and flexibility that holds at very low temperatures. The material holds up against ozone and UV exposure, extreme heat and cold, and dry heat. Published continuous service range is -80°F (-62.2°C) to 450°F (232.2°C). Verify compatibility before use with abrasive dynamic service or steam above its rated range.
This item is metal detectable for HACCP and foreign-body control programs. You will find this material specified across pharmaceutical manufacturing, medical devices, and food and beverage processing.
S70MD409 ships individually. Nominal inside diameter is listed as 2 1/2 inch. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description -409 RED SILICONE 70D O-RING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 2.475 inch (62.87 mm)
Actual Outside Diameter 3.025 inch (76.84 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable