APG stocks the V75469, an AS568-469 black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 19.955 in (506.86 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 20.505 in (520.83 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Viton® (FKM) is specified here for excellent resistance to compression set and permeation, industry benchmark where nitrile reaches its thermal limit. The compound resists many acids, petroleum oils and fuels, and chlorinated solvents. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Applications involving ketones and esters or amines call for a different compound.
It sees regular use in automotive fuel systems, high-temperature process equipment, and oil and gas.
This item is sold individually under part number V75469. Nominal inside diameter is listed as 20 inch. Review your operating media and conditions against this specification before installation.
Description -469 BLACK FKM 75D O-RING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 19.955 inch (506.86 mm)
Actual Outside Diameter 20.505 inch (520.83 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity