CF Flange Dimensions
|
Flange Size
|
A
Nominal Tube Diameter
|
B
Flange Outside Diameter
|
C
Bolt Circle Diameter
|
D
Thickness
|
E
Number of Holes
|
Tapped Holes - Thread
|
Thru Holes Diameter
|
F
Face to Counter Bore
|
|
11/3
|
.75 in
(19 mm)
|
1.33 in
(34 mm)
|
1.06 in
(27 mm)
|
.30 in
(8 mm)
|
6
|
8 - 32
|
.172 in
(4.3 mm)
|
.18 in
(4.6 mm)
|
|
21/8
|
1.00 in
(25 mm)
|
2.12 in
(54 mm)
|
1.62 in
(41 mm)
|
.5 in
(13 mm)
|
4
|
1/4 - 28
|
.265 in
(6.7 mm)
|
.17 in
(4.3 mm)
|
|
23/4
|
1.50 in
(38 mm)
|
2.75 in
(70 mm)
|
2.31 in
(59 mm)
|
.50 in
(13 mm)
|
6
|
1/4 - 28
|
.265 in
(6.7 mm)
|
.21 in
(5.3 mm)
|
|
33/8
|
2.00 in
(51 mm)
|
3.38 in
(86 mm)
|
2.85 in
(72 mm)
|
.69 in
(18 mm)
|
8
|
5/16 - 24
|
.332 in
(8.4 mm)
|
.22 in
(5.6 mm)
|
|
41/2
|
2.50 in
(64 mm)
|
4.50 in
(114 mm)
|
3.63 in
(92 mm)
|
.69 in
(18 mm)
|
8
|
5/16 - 24
|
.332 in
(8.4 mm)
|
.38 in
(9.6 mm)
|
|
45/8
|
3.01 in
(76 mm)
|
4.61 in
(118 mm)
|
4.03 in
(102 mm)
|
.75 in
(19 mm)
|
10
|
5/16 - 24
|
.332 in
(8.4 mm)
|
.38 in
(9.6 mm)
|
|
6
|
4.00 in
(102 mm)
|
6.00 in
(152 mm)
|
5.13 in
(130 mm)
|
.78 in
(20 mm)
|
16
|
5/16 - 24
|
.332 in
(8.4 mm)
|
.43 in
(10.9 mm)
|
|
8
|
6.00 in
(152 mm)
|
8.00 in
(203 mm)
|
7.13 in
(181 mm)
|
.88 in
(22 mm)
|
20
|
5/16 - 24
|
.332 in
(8.4 mm)
|
.50 in
(12.7 mm)
|
|
10
|
8.00 in
(203 mm)
|
10.00 in
(254 mm)
|
9.13 in
(232 mm)
|
.97 in
(25 mm)
|
24
|
5/16 - 24
|
.332 in
(8.4 mm)
|
.50 in
(12.7 mm)
|
Need help?
Contact an Applications Specialist by sending an email to MKS Instruments, or call 978-645-5500.