APG stocks the VITON75469, an AS568-469 black Viton® (FKM) 75 Shore A O-Ring supplied with 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 creates a positive seal at flange, piston and rod interfaces without added hardware.
Expect good resistance to aromatic hydrocarbons, aggressive chemicals, and many acids. That behavior comes from the compound itself: Viton® (FKM) offers very low compression set at elevated temperature, excellent resistance to compression set and permeation. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C).
Maintenance and OEM teams specify it across high-temperature process equipment, semiconductor equipment, and aerospace.
Reference part number VITON75469 when ordering; the item is sold individually. Unit weight is approximately 113.16 g and nominal inside diameter is listed as 20 inch. Check the compound against your process media, pressure and temperature before committing to a design.
description -469 BLACK CHEMOURS VITON 75D O-RING
uf_description2 0.275" (6.99MM) CS X 19.955" (506.86MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 19.955 inch (506.86 mm)
Actual_OD 20.505 inch (520.83 mm)
ProductCode Description O-Rings - Bulk - Commodity