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CF Flanges - 2-3/4 Inch (70mm) Nominal OD

CF Flanges - 2-3/4 Inch (70mm) Nominal OD
CF flanges are available with UNC or UNF tapped and untapped holes. Metric tapped or helicoiled holes can be ordered as specials. Tapped flanges have through holes, so bolts may protrude slightly from the back of the flange when fastened to an untapped flange. Untapped CF flanges can be fastened to each other with stainless steel bolts and hex nuts or plate nuts. 12-point bolts are available for CF flanges from 2¾ to 10 inch ODs. Silver plated bolts are available upon request to eliminate the need for anti-seize compound in clean room environments.

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Product Code Description Price Qty
275-000NT-M6

Blank Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Blank Tapped A - - - 6 M6
275-000RT-M6

Blank Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Blank Tapped C - - - 6 M6
275-025NT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 6.48 - - 6 M6
275-025RT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 6.48 - - 6 M6
275-050NT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 12.83 - - 6 M6
275-050RT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 12.83 - - 6 M6
275-075NT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 17.48 19.3 5.31 6 M6
275-075RT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 17.48 19.3 5.31 6 M6
275-100NT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 23.83 25.65 5.31 6 M6
275-100RT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 23.83 25.65 5.31 6 M6
275-125NT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 30.18 32 5.31 6 M6
275-125RT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 30.18 32 5.31 6 M6
275-150RT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 36.53 38.35 5.31 6 M6
275-162NT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 39.62 41.53 5.31 6 M6
275-175NT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 41.15 44.7 5.31 6 M6
275-000N

FLANGE,CF 2 3/4" N ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Blank A - - - 6 0.265
275-000NT

FLANGE,CF 2 3/4" N ROT TAPPED

Type Diagram A B C Bolt Holes Diameter or Thread
Blank Tapped A - - - 6 1/4-28
275-000R

FLANGE,CF 2 3/4" ROTATABLE(KIT)

Type Diagram A B C Bolt Holes Diameter or Thread
Blank C - - - 6 0.265
275-000RT

FLANGE,CF 2.75" ROT TAPPED(KIT)

Type Diagram A B C Bolt Holes Diameter or Thread
Blank Tapped C - - - 6 1⁄4-28
275-025N

FLANGE,CF 2.75" X 0.25" NON ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Bored B 6.48 - - 6 0.265
275-025NT

FLANGE,CF 2.75" X 0.25" NON ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 6.48 - - 6 1⁄4-28
275-025R

FLANGE,CF 2.75" X 0.25" ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Bored D 6.48 - - 6 0.265
275-025RT

FLANGE,CF 2.75" X 0.25" ROT TAPPED

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 6.48 - - 6 1⁄4-28
275-050N

FLANGE,CF 2.75" X 0.5" NON ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Bored B 12.83 - - 6 0.265
275-050NT

FLANGE,CF 2.75" X .05" NON ROT TAPPED

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 12.83 - - 6 1⁄4-28
275-050R

FLANGE,CF 2.75" X 0.5" ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Bored D 12.83 - - 6 0.265
275-050RT

FLANGE,CF 2.75" X 0.5" ROT TAPPED

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 12.83 - - 6 1⁄4-28
275-075N

FLANGE,CF 2.75" NON ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Bored B 17.48 19.3 5.31 6 0.265
275-075NT

FLANGE,CF 2.75" NON ROT TAPPED

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 17.48 19.3 5.31 6 1⁄4-28
275-075R

FLANGE,CF 2.75" ROTATABLE(KIT)

Type Diagram A B C Bolt Holes Diameter or Thread
Bored D 17.48 19.3 5.31 6 0.265
275-075RT

FLANGE,CF 2.75" ROT TAPPED(KIT)

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 17.48 19.3 5.31 6 1⁄4-28
275-100N

FLANGE,CF 2.75" X 1"NON ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Bored B 23.83 25.65 5.31 6 0.265
275-100NT

FLANGE,CF 2.75" X 1" NON ROT TAPPED

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 23.83 25.65 5.31 6 1⁄4-28
275-100R

FLANGE,CF 2.75" X 1" ROT(KIT)

Type Diagram A B C Bolt Holes Diameter or Thread
Bored D 23.83 25.65 5.31 6 0.265
275-100RT

FLANGE,CF 2.75" X 1" ROT TAPPED(KIT)

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 23.83 25.65 5.31 6 1⁄4-28
275-125N

FLANGE,CF 2.75" X 1.25" NON ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Bored B 30.18 32 5.31 6 0.265
275-125NT

FLANGE,CF 2.75" X 1.25" NON ROT TAPPED

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 30.18 32 5.31 6 1⁄4-28
275-125R

FLANGE,CF 2.75" X 1.25" ROTATABLE

Type Diagram A B C Bolt Holes Diameter or Thread
Bored D 30.18 32 5.31 6 0.265
275-125RT

FLANGE,CF 2.75" X 1.25" ROT TAPPED

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 30.18 32 5.31 6 1⁄4-28
275-150N

FLANGE,CF 2.75" X 1.5" NON ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Bored B 36.53 38.35 5.31 6 0.265
275-150NT

FLANGE,CF 2.75" X 1.5" NON ROT TAPPED

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 36.53 38.35 5.31 6 1⁄4-28
275-150NT-M6

Bored Tapped

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 36.53 38.35 5.31 6 M6
275-150R

FLANGE,CF 2.75" X 1.5" ROT(KIT)

Type Diagram A B C Bolt Holes Diameter or Thread
Bored D 36.53 38.35 5.31 6 0.265
275-150RT

FLANGE,CF 2.75" X 1.5" ROT TAPPED(KIT)

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped D 36.53 38.35 5.31 6 1⁄4-28
275-162N

FLANGE,CF 2.75" X 1.625" NON ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Bored B 39.62 41.53 5.31 6 0.265
275-162NT

FLANGE,CF 2.75" X 1.625" NON ROT TAPPED

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 39.62 41.53 5.31 6 1⁄4-28
275-175N

FLANGE,CF 2.75" X 1.75" NON ROT

Type Diagram A B C Bolt Holes Diameter or Thread
Bored B 41.15 44.7 5.31 6 0.265
275-175NT

FLANGE,CF 2.75" X 1.75" NON ROT TAPPED

Type Diagram A B C Bolt Holes Diameter or Thread
Bored Tapped B 41.15 44.7 5.31 6 1⁄4-28