-164 BROWN FKM 75D O-RING

VB75164 is an AS568-164 brown Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 6.237 in (158.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 6.443 in (163.65 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

It resists aromatic hydrocarbons, petroleum oils and fuels, and chlorinated solvents. That behavior comes from the compound itself: Viton® (FKM) is widely chosen for excellent resistance to compression set and permeation, very low compression set at elevated temperature. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where ketones and esters or amines are present.

Maintenance and OEM teams specify it across aerospace, high-temperature process equipment, and oil and gas.

Order part number VB75164, sold individually. Unit weight is approximately 5.773 g and nominal inside diameter is listed as 6 1/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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.