Ordered as VITON75464, this is an AS568-464 black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 17.455 in (443.36 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 18.005 in (457.33 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
The material holds up against chlorinated solvents, aggressive chemicals, and many acids. That behavior comes from the compound itself: Viton® (FKM) is valued for very low compression set at elevated temperature and outstanding high-temperature capability. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. It should not be specified for service in amines or ketones and esters.
You will find this material specified across automotive fuel systems, oil and gas, and chemical processing.
Reference part number VITON75464 when ordering; the item is sold individually. Unit weight is approximately 99.56 g and nominal inside diameter is listed as 17 1/2 inch. Review your operating media and conditions against this specification before 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 -464 BLACK CHEMOURS VITON 75D O-RING
uf_description2 0.275" (6.99MM) CS X 17.455" (443.36MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 17.455 inch (443.36 mm)
Actual_OD 18.005 inch (457.33 mm)
ProductCode Description O-Rings - Bulk - Commodity