4.0mm CS

FKM Metric O-Rings (Fluorocarbon) 75 Durometer Black

FKM (or Fluorocarbon) works for almost every application. It can withstand temperatures from -20-degrees F up to 400-degrees F. The relatively high level of fluorine in FKM materials allows for exceptional resistance to chemical attack, but with limited low temperature capabilities. It has a good resistance to ozone, high temperatures, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals.

Operating temperature: -20° to +400F°

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