Ordered as VB75339, this is an AS568-339 brown Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 3.225 in (81.92 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.645 in (92.58 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, Viton® (FKM) is valued for long service life in hot, chemically aggressive environments and outstanding high-temperature capability. Expect good resistance to chlorinated solvents, many acids, and engine and transmission fluids. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where hot water and steam or low-molecular-weight organic acids are present.
Typical settings include automotive fuel systems, aerospace, and high-temperature process equipment.
This item is sold individually under part number VB75339. Unit weight is approximately 12.619 g and nominal inside diameter is listed as 3 1/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description -339 BROWN FKM 75D O-RING
uf_description2 0.210" (5.33MM) CS X 3.225" (81.92MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 3.225 inch (81.92 mm)
Actual_OD 3.645 inch (92.58 mm)
ProductCode Description O-Rings - Bulk - Commodity