NW50x25 
NW50 to NW25 (KF50 to KF25) 
Straight Reducer (Reducing Nipple) 
• 304 Stainless 
• 1.70" OAL  
 Flange to Flange Straight Tube Adapter 
 NW25 (KF25) Flange OD: Ø1.57" 
• NW25 Centering Ring Counter Bore: 1.03" 
 NW25 High Vacuum Flange Equivalents 
KF25, KF-25, K100, NW-25, QF25, ISO-QF 
 NW50 (KF50) Flange  
• NW50 (KF50) Flange OD: Ø2.95"  
 NW50 High Vacuum Flange Equivalents 
KF50, KF-50, K200, NW-50, QF50, ISO-QF 
 NW50x25 Comparable to KF50xKF25 NW50xNW25 QF50XQF25 732004 KRS2550 P103459 2NR-NW-50-25  4000430 QF50X25 NW25x50 NW25xNW50 4518K33 NW50x25-OS NW50x25-VE