This o-ring is supplied in AS568-351 red Silicone 70 Shore A built to an inside diameter of 4.725 in (120.02 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.145 in (130.68 mm), catalogued under part number S70MD351. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Silicone is valued for flexibility that holds at very low temperatures and an exceptionally wide service temperature range. This material stands up to dry heat, many oxidizing chemicals, and weathering. Service temperature is rated from -80°F (-62.2°C) through 450°F (232.2°C). It should not be specified for service in abrasive dynamic service or hydrocarbon fuels and oils.
The compound is metal detectable for HACCP and foreign-body control programs. It sees regular use in food and beverage processing, medical devices, and electronics and electrical enclosures.
Stocked as S70MD351 and sold individually. Nominal inside diameter is listed as 4 3/4 inch. Check the compound against your process media, pressure and temperature before committing to a design.
description -351 RED SILICONE 70D O-RING
uf_description2 METAL DETECTABLE, 0.210" (5.33MM) CS X 4.725" (120.01MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 4.725 inch (120.02 mm)
Actual_OD 5.145 inch (130.68 mm)
ProductCode Description O-Rings - FDA / Metal Detectable