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 - 316L Stainless Steel
SQ3 PATTERN
F
F
F
F
F
F
F
F
F
F
F
D
x
E
1/2" (.53)
3/4" (.75)
1" (.94)
1 1/4" (1.25)
1 1/2" (1.50)
2" (1.94)
2 1/2" (2.32)
3" (2.90)
3 1/2" (3.36)
4" (3.83)
5" (4.81)
1.438
x
1.438
6399-08-08D
6399-12-12D
6399-12-16D
6399-12-20D
6399-12-24D
6399-12-32D
6399-12-40D
6399-12-48D
6399-12-56D
6399-12-64D
6399-12-80D
2.000
x
2.000
6399-16-08D
6399-16-12D
6399-16-16D
6399-20-20D
6399-20-24D
6399-20-32D
6399-20-40D
6399-20-48D
6399-20-56D
6399-20-64D
6399-20-80D
2.750
x
2.750
6399-24-08D
6399-24-12D
6399-24-16D
6399-24-20D
6399-24-24D
6399-32-32D
6399-32-40D
6399-32-48D
6399-32-56D
6399-32-64D
6399-32-80D
3.750
x
3.750
6399-40-08D
6399-40-12D
6399-40-16D
6399-40-20D
6399-40-24D
6399-40-32D
6399-40-40D
6399-48-48D
6399-48-56D
6399-48-64D
6399-48-80D
4.250
x
4.250
6399-56-08D
6399-56-12D
6399-56-16D
6399-56-20D
6399-56-24D
6399-56-32D
6399-56-40D
6399-56-48D
6399-56-56D
6399-56-64D
6399-56-80D
5.000
x
5.000
6399-64-08D
6399-64-12D
6399-64-16D
6399-64-20D
6399-64-24D
6399-64-32D
6399-64-40D
6399-64-48D
6399-64-56D
6399-64-64D
6399-64-80D
6.000
x
6.000
6399-80-08D
6399-80-12D
6399-80-16D
6399-80-20D
6399-80-24D
6399-80-32D
6399-80-40D
6399-80-48D
6399-80-56D
6399-80-64D
6399-80-80D
