These are ASA 4.25 /ANSI 1 bored flanges, with no O-ring groove, and are not rotatable. These CNC lathe turned ASA/ANSI flanges are bored out for welding to tubing to make vacuum lines. Both sides of the flange are smooth. ASA/ANSI flanges always mate an O-ring grooved flange with a smooth (non-grooved) flange to form a sealed connection with through-hole bolts, nuts, and washers. These flanges are made of 304 stainless steel. Dimensions, in. (mm): = 4.25 in. (108) = 3.125 in. (79.4) = 0.50 in. (12.7) = 0.625 in (15.8), 4 Holes = 0.92 in. (23.4) = 1.00 in. (25.7) Other SpecificationsMade of 304 Stainless SteelHas 4 Bolt HolesBolt Hole Diameter of 0.625 inches (15.8 mm)

These are ASA 5.0 /ANSI 1.5 bored flanges, with no O-ring groove, and are not rotatable. These CNC lathe turned ASA/ANSI flanges are bored out for welding to tubing to make vacuum lines. Both sides of the flange are smooth. ASA/ANSI flanges always mate an O-ring grooved flange with a smooth (non-grooved) flange to form a sealed connection with through-hole bolts, nuts, and washers. These flanges are made of 304 stainless steel. Dimensions, in. (mm): = 5.0 in. (127) = 3.875 in. (98.4) = 0.50 in. (12.7) = 0.625 in (15.8), 4 Holes = 1.42 in. (36) = 1.5 in (38.4) Other SpecificationsMade of 304 Stainless SteelHas 4 Bolt HolesBolt Hole Diameter of 0.625 inches (15.8 mm)

These are ASA 6.0 /ANSI 2 bored flanges, with no O-ring groove, and are not rotatable. These CNC lathe turned ASA/ANSI flanges are bored out for welding to tubing to make vacuum lines. ASA/ANSI flanges always mate an O-ring grooved flange with a smooth (non-grooved) flange to form a sealed connection with through-hole bolts, nuts, and washers. These flanges are made of 304 stainless steel. Dimensions, in. (mm): = 6.00 in. (152.4) = 4.75 in. (120.6) = 0.50 in. (12.7) = 0.75 in. (19), 4 Holes = 1.91 in. (48.6) = 2.00 in. (51) Other SpecificationsMade of 304 Stainless SteelHas 4 Bolt HolesBolt Hole Diameter of 0.75 inches (19 mm)Non-Grooved Flange

These are ASA 7.5 /ANSI 3 bored flanges, with no O-ring groove, and are not rotatable. These CNC lathe turned ASA/ANSI flanges are bored out for welding to tubing to make vacuum lines. Both sides of the flange are smooth. They are welded to tubing to make vacuum lines. ASA/ANSI flanges always mate an O-ring grooved flange with a smooth (non-grooved) flange to form a sealed connection with through-hole bolts, nuts, and washers. These flanges are made of 304 stainless steel. Dimensions, in. (mm): = 6.00 in. (152.4) = 0.50 in. (12.7) = 0.75 in. (19), 4 Holes = 2.87 in. (73) = 3.00 in (76.8) Other SpecificationsMade of 304 Stainless SteelHas 4 Bolt Holes

These are ASA 9.0 /ANSI 4 bored flanges, with no O-ring groove, and are not rotatable. These CNC lathe turned ASA/ANSI flanges are bored out for welding to tubing to make vacuum lines. Both sides of the flange are smooth. They are welded to tubing to make vacuum lines. ASA/ANSI flanges always mate an O-ring grooved flange with a smooth (non-grooved) flange to form a sealed connection with through-hole bolts, nuts, and washers. These flanges are made of 304 stainless steel. Dimensions, in. (mm): = 9.00 in. (228.6) = 7.5 in. (190.5) = 0.50 in. (12.7) = 0.75 in. (19), 8 Holes = 3.87 in. (98.4) = 4.02 in (102.2) Other Specification Made of 304 Stainless Steel

These are ASA 13.5 /ANSI 8 bored flanges, with no O-ring groove, and are not rotatable. These CNC lathe turned ASA/ANSI flanges are bored out for welding to tubing to make vacuum lines. Both sides of the flange are smooth. They are welded to tubing to make vacuum lines. ASA/ANSI flanges always mate an O-ring grooved flange with a smooth (non-grooved) flange to form a sealed connection with through-hole bolts, nuts, and washers. These flanges are made of 304 stainless steel. Dimensions, in. (mm): = 13.5 in. (342.9) = 11.75 in. (298.5) = 0.75 in. (19) = 0.81 in. (20.6), 8 Holes = 7.83 in. (198.9) = 8.00 in. (203.7)Other SpecificationsMade of 304 Stainless Steel

These are ASA 11.0 /ANSI 6 bored flanges, with no O-ring groove, are not bored, and are not rotatable. These CNC lathe turned ASA/ANSI flanges are bored out for welding to tubing to make vacuum lines. Both sides of the flange are smooth. They are welded to tubing to make vacuum lines. ASA/ANSI flanges always mate an O-ring grooved flange with a smooth (non-grooved) flange to form a sealed connection with through-hole bolts, nuts, and washers. These flanges are made of 304 stainless steel. Dimensions, in. (mm): = 11.0 in. (279.4) = 9.5 in. (241.3) = 0.75 in. (19) = 0.812 in. (20.6), 8 Holes = 5.823 in. (147.9) = 6.00 in (152.9) Other Specifications

These are ASA 16.0 /ANSI 10 bored flanges, with no O-ring groove, and are not rotatable. These CNC lathe turned ASA/ANSI flanges are bored out for welding to tubing to make vacuum lines. Both sides of the flange are smooth. They are welded to tubing to make vacuum lines. ASA/ANSI flanges always mate an O-ring grooved flange with a smooth (non-grooved) flange to form a sealed connection with through-hole bolts, nuts, and washers. These flanges are made of 304 stainless steel. Dimensions, in. (mm): = 16.00 in. (406.4) = 14.25 in. (362) = 1.00 in. (25.4) = 0.81 in. (20.6), 12 Holes = 9.82 in. (249.5) = 10.00 in. (254.5)Other SpecificationsMade of 304 Stainless Steel

These are ASA 19.0 /ANSI 12 bored flanges, with no O-ring groove, and are not rotatable. These CNC lathe turned ASA/ANSI flanges are bored out for welding to tubing to make vacuum lines. Both sides of the flange are smooth. They are welded to tubing to make vacuum lines. ASA/ANSI flanges always mate an O-ring grooved flange with a smooth (non-grooved) flange to form a sealed connection with through-hole bolts, nuts, and washers. These flanges are made of 304 stainless steel. Dimensions, in. (mm): = 19.00 in. (482.60) = 17.00 in. (431.8) = 1.062 in. (27) = 1.00 in. (25.4) = 11.75 in. (298.5) = 12.00 in. (305.3)Other SpecificationsMade of 304 Stainless Steel