ISO63 (ISO-K) Series 
• High Vacuum Flange OD: Ø3.74" 
• Tube OD: 2.50" 
• ISO-K Claw Clamp Style 
 ISO63 High Vacuum Flange Equivalents: 
ISO-63, LF63, NW63, NW-63, Large Flange, MF 
 4-5/8" OD Conflat Flange (CF): 
• 3.00" Tube OD 
• 10-Clearance (Thru) Holes 
• 0.332" Bolt Hole Diameter 
• Non-Rotatable 
 4.625" OD Conflat Flange (CFF) Equivalents: 
• CF462, DN75CF, NW75CF, 462CF 
**This Vacuum Essential Includes**
• Conical Reducer:  462xISO63-CR 
4-Aluminum Double Claw Clamps (ISO63-100-DC) 
1-SS/Viton Centering Ring 
(ISO63-250-SR-V) 
1-Bolt Kit (462-BK Series) 
10-Copper Gaskets 
(462-CG Series)