Ordered as VITON75204, this is an AS568-204 black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 0.359 in (9.12 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.637 in (16.18 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Viton® (FKM) is known for long service life in hot, chemically aggressive environments and very low compression set at elevated temperature. The material holds up against aromatic hydrocarbons, many acids, and engine and transmission fluids. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Applications involving amines or ketones and esters call for a different compound.
Maintenance and OEM teams specify it across oil and gas, automotive fuel systems, and chemical processing.
Order part number VITON75204, sold individually. Unit weight is approximately 0.72 g and nominal inside diameter is listed as 3/8 inch. Check the compound against your process media, pressure and temperature before committing to a design.
description -204 BLACK CHEMOURS VITON 75D O-RING
uf_description2 0.139" (3.53MM) CS X 0.359" (9.12MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 0.359 inch (9.12 mm)
Actual_OD 0.637 inch (16.18 )
ProductCode Description O-Rings - Bulk - Commodity