These are Bored Through 6 bolt holes rotatable flanges, 1 1/3 inch CF, CFF ConFlat (CF). These flanges are used for ultra-high vacuum applications. These fittings use a copper gasket and a knife-edge flange to achieve the high vacuum seal and can operate down to 10-13 torr (10-11 Pa) and can be heated to 450 °C for bake-out. North American flange sizes are given by flange outer diameter in inches: 1-1/3 ("mini conflat"), 2?, 4?, 6, 8, 10, 12, 13?, 14 and 16?. In Europe and Asia, sizes are given by tube inner diameter in millimeters: DN16, DN40, DN63, DN100, DN160, DN200, DN250. These vacuum fittings are made of corrosive resistant stainless steel. Sold as ONE EACH

Conflat Flange (CF) Bored 6 bolt hole through flange rotatable, bored 0.50 inch, CF 1 1/3 inches, Stainless Steel

CF Flange Size: CF 1.33 inch

Common Dimensions: 

(A) Outer Diameter = 1 1/3 in. (34mm)

(B) = NA

(C) = 1/2 in. (13mm)

(D) = 1/4 in. (7mm)

(E) = 1 1/16 in. (27mm)