450-250-E90  
 90 Degree Radius Elbow 
4.50" OD CF Conflat Flange 
• Weight: 5.5 lbs
• OD Polish 
• 304 Stainless 
 4-1/2" OD Conflat Flange (CF): 
• 2.50" Tube OD 
• 8-Clearance (Thru) Holes 
• 0.332" Bolt Hole Diameter 
 4.50" OD Conflat Flange (CFF) Equivalents 
450CF, DN63CF, NW63CF, CF63, CF64 
CF450, Del Seal 
 High Vacuum & Ultra High Vacuum (UHV) 
 
90 Degree Elbow 
 450-250-E90-VE Compare to:  P102181 L-0450 403004 250-2L  CF450-250-E90-4.12 5000465 100885018 2E-250 450-E90-VE 450-250-E90-VE 9088K43