This o-ring is supplied in AS568-444 blue Viton® (FKM) 75 Shore A measuring an inside diameter of 7.725 in (196.22 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 8.275 in (210.19 mm), catalogued under part number V75MD444. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Viton® (FKM) is specified here for long service life in hot, chemically aggressive environments and outstanding high-temperature capability. Expect good resistance to many acids, aromatic hydrocarbons, and petroleum oils and fuels. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C).
This item meets FDA requirements for food contact, carries NSF listing, and is metal detectable for HACCP and foreign-body control programs. It sees regular use in aerospace, oil and gas, and chemical processing.
Order part number V75MD444, sold individually. Nominal inside diameter is listed as 7 3/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description -444 BLUE FKM 75D O-RING
uf_description2 METAL DETECTABLE, 0.275" (6.99MM) CS X 7.725" (196.21MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 7.725 inch (196.22 mm)
Actual_OD 8.275 inch (210.19 mm)
ProductCode Description O-Rings - FDA / Metal Detectable