275xISO63-CR 
ISO63 to 2.75" OD Conflat Flange 
Flange to Flange 
Conflat to ISO High Vacuum Adapter 
 Conical Reducing Nipple 
• A: 2.83" 
• 304 Stainless 
 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 
 2-3/4" OD CF Conflat Flange: 
• 1.50" Tube OD 
• 6 Clearance (Thru) Holes 
• 0.265" Bolt Hole Diameter 
• Non-Rotatable 
  2.75" OD CF Conflat Flange (CFF) Equivalents 
275CF, CF35, CF38, CF40, CF275 
DN35CF, DN40CF, NW35CF 
 Compare to: ISO63x275-CR ANC-275-ISO-63-OF  P103828 5000710 275XLF63-CR 275xISO63-CR-VE  ISO63x275-CR-VE