ISO100 (ISO-K) Series 
• High Vacuum Flange OD: Ø5.12" 
• Tube OD: 4.00" 
• ISO-K Claw Clamp Style 
 ISO100 High Vacuum Flange Equivalents:  
ISO-100, LF100, NW100, NW-100, Large Flange, MF 
 3.38" OD Conflat Flange (CF): 
• 2.00" Tube OD 
• 8 Clearance (Thru) Holes 
• 0.332" Bolt Hole Diameter 
• Non-Rotatable 
 3-3/8" OD Conflat Flange (CF) Equivalents: 
• 338CF, CF338, DN50CF, NW50CF, 3.375" CFF 
**This Vacuum Essential Includes**
• Conical Reducer:  338xISO100-CR 
4-Aluminum Double Claw Clamps (ISO63-100-DC) 
1-SS/Viton Centering Ring 
(ISO100-400-SR-V) 
1-Bolt Kit (338-BK Series) 
10-Copper Gaskets 
(338-CG Series)