NW50x275 
NW50 (KF50) to 2.75" OD Conflat Flange (CF) 
• Straight Reducing Nipple 
• Flange to Flange Straight Reducer 
• High Vacuum Adapter (275xNW50) 
 NW50 (KF50) Flange OD: Ø2.95" 
• NW50 Centering Ring Counter Bore: 2.06" 
 NW50 High Vacuum Flange Equivalents 
KF50, KF-50, K200, NW-50, QF50, ISO-QF 
 2-3/4" OD CF Conflat Flange (CF): 
• Non-Rotatable 
• 6 Clearance (Thru) Holes 
• 0.265" Bolt Hole Diameter  
  2.75" OD CF Conflat Flange (CFF) Equivalents 
275CF, CF35, CF38, CF40, CF275 
DN35CF, DN40CF, NW35CF, Del Seal 
 NW50x275 Compare to: 100319813 P101966 5000685 CF275XQF50-150-N-1.95 F0275XQF50 NW50x275-VE  275xNW50-VE