462x275-CR 
4.62" Conflat to 2.75" Conflat Conical Reducing Nipple 
• 462x275 CFF (DN75CFxDN40CF) 
• 304 Stainless 
• OD Polish 
• Flange to Flange UHV Vacuum Adapter 
• CFxCF Conical Reducer 
 2-3/4" OD CF Conflat Flange (CF): 
• Rotatable 
• 1.50" Tube OD 
• 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  
 4-5/8" OD Conflat Flange (CF): 
• Non-Rotatable 
• 3" Tube OD 
• 10-Clearance (Thru) Holes 
• 0.332" Bolt Hole Diameter 
 4.625" OD Conflat Flange (CFF) Equivalents: 
• CF462, DN75CF, NW75CF, 462CF 
 462x275-CR Compare to:  P104790 5000447 CF462XCF275R-300X150-CR-4.214 CRN462X275  2NRC-462-275 402034  FCR458-275 DN75CF x DN40CF DN75CFxDN35CF 462x275-CR-VE 275x462-CR-VE