ConFlat (CF) Copper Gasket DN40CF, Flange OD 2.75, Inner Diameter 1.45, Outer Diameter 1.895

The copper gasket is captured between mating CF flanges. Copper gaskets are made from high-purity, oxygen free 1/4 hard copper which is de-burred, chemically treated and individually packaged to avoid oxidation. If you are operating at a pressure below 10-8 torr, o-ring sealed compression ports limit the system pressure because of leakage and permeation.
Flange Size: DN40CF
Pack Quantity: 10
Flange OD (In) : 2.75
Inner Diameter (In) : 1.450
Outer Diameter (In) : 1.895