NOW FIND THE "D", "E", & "F" DIMENSIONS IN THE TABLE BELOW
TO FIND YOUR PART NUMBER.
CONTACT ENGINEERING FOR HELP WITH GRAYED-OUT ITEMS.
Carbon Steel Part No. 304L SS Part No. 316L SS Part No.
O-RING STYLE FLANGE PART NUMBER - 304L Stainless Steel
SQ3 PATTERN
F
F
F
F
F
F
F
F
F
F
F
D
x
E
1/2" (.47)
3/4" (.61)
1" (.81)
1 1/4" (1.16)
1 1/2" (1.34)
2" (1.69)
2 1/2" (2.12)
3" (2.62)
3 1/2" (3.00)
4" (3.44)
5" (4.31)
1.438
x
1.438
6403-08-08B
6403-12-12B
6403-12-16B
6403-12-20B
6403-12-24B
6403-12-32B
6403-12-40B
6403-12-48B
6403-12-56B
6403-12-64B
6403-12-80B
2.000
x
2.000
6403-16-08B
6403-16-12B
6403-16-16B
6403-20-20B
6403-20-24B
6403-20-32B
6403-20-40B
6403-20-48B
6403-20-56B
6403-20-64B
6403-20-80B
2.750
x
2.750
6403-24-08B
6403-24-12B
6403-24-16B
6403-24-20B
6403-24-24B
6403-32-32B
6403-32-40B
6403-32-48B
6403-32-56B
6403-32-64B
6403-32-80B
3.750
x
3.750
6403-40-08B
6403-40-12B
6403-40-16B
6403-40-20B
6403-40-24B
6403-40-32B
6403-40-40B
6403-48-48B
6403-48-56B
6403-48-64B
6403-48-80B
4.250
x
4.250
6403-56-08B
6403-56-12B
6403-56-16B
6403-56-20B
6403-56-24B
6403-56-32B
6403-56-40B
6403-56-48B
6403-56-56B
6403-56-64B
6403-56-80B
5.000
x
5.000
6403-64-08B
6403-64-12B
6403-64-16B
6403-64-20B
6403-64-24B
6403-64-32B
6403-64-40B
6403-64-48B
6403-64-56B
6403-64-64B
6403-64-80B
6.000
x
6.000
6403-80-08B
6403-80-12B
6403-80-16B
6403-80-20B
6403-80-24B
6403-80-32B
6403-80-40B
6403-80-48B
6403-80-56B
6403-80-64B
6403-80-80B
