Ordered as VITON75908, this is an AS568-908 black Viton® (FKM) 75 Shore A O-Ring supplied with an inside diameter of 0.644 in (16.36 mm), a cross section of 0.087 in (2.21 mm), and an outside diameter of 0.818 in (20.78 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Viton® (FKM) is known for outstanding high-temperature capability, excellent resistance to compression set and permeation. Expect good resistance to aggressive chemicals, many acids, and chlorinated solvents. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in low-molecular-weight organic acids or amines.
Common environments for this compound include aerospace, semiconductor equipment, and high-temperature process equipment.
This item is sold individually under part number VITON75908. Unit weight is approximately 0.42 g and nominal inside diameter is listed as 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. 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 -908 BLACK CHEMOURS VITON 75D O-RING
uf_description2 0.087" (2.21MM) CS X 0.644" (16.36MM) ID
Actual_CS 0.087 inch (2.21 mm)
Actual_ID 0.644 inch (16.36 mm)
Actual_OD 0.818 inch (20.78 )
ProductCode Description O-Rings - Bulk - Commodity