Flange – Socket, ANSI Class 600, ASME B16.5, 1/4″ Raised Face (in)
- Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
- Carbon steel forgings in accordance with ASTM A105.
- Bolt circle diameters are 1/8 inch larger than bolt diameter.

Pipe Size(NPS) |
OutsideDiameter of
Flange
A |
Diameterof
Raised Face
B |
Thicknessof
Flange
C |
Diameterof
Bore
D |
Diameterof
Bore
E |
Depthof
Socket
G |
Diameterof Hub
at Base
J |
Lengthof
Hub
L |
Numberof
Bolt
Holes |
Diameterof
Bolt
Holes |
BoltCircle Diameter
P |
Approx.Weight |
1/2 |
3 3/4 |
1 3/8 |
9/16 |
0.55 |
0.88 |
3/8 |
1 1/2 |
7/8 |
4 |
5/8 |
2 5/8 |
3 |
3/4 |
4 5/8 |
1 11/16 |
5/8 |
0.74 |
1.09 |
7/16 |
1 7/8 |
1 |
4 |
3/4 |
3 1/4 |
3 |
1 |
4 7/8 |
2 |
11/16 |
0.92 |
1.36 |
1/2 |
2 1/8 |
1 1/16 |
4 |
3/4 |
3 1/2 |
4 |
1 1/4 |
5 1/4 |
2 1/2 |
13/16 |
1.28 |
1.70 |
9/16 |
2 1/2 |
1 1/8 |
4 |
3/4 |
3 7/8 |
6 |
1 1/2 |
6 1/8 |
2 7/8 |
7/8 |
1.50 |
1.95 |
5/8 |
2 3/4 |
1 1/4 |
4 |
7/8 |
4 1/2 |
7 |
2 |
6 1/2 |
3 5/8 |
1 |
1.94 |
2.44 |
11/16 |
3 5/16 |
1 7/16 |
8 |
3/4 |
5 |
9 |
2 1/2 |
7 1/2 |
4 1/8 |
1 1/8 |
2.32 |
2.94 |
3/4 |
3 15/16 |
1 5/8 |
8 |
7/8 |
5 7/8 |
13 |
3 |
8 1/4 |
5 |
1 1/4 |
2.90 |
3.57 |
13/16 |
4 5/8 |
1 13/16 |
8 |
7/8 |
6 5/8 |
16 |
3 1/2 |
9 |
5 1/2 |
1 3/8 |
3.36 |
4.07 |
7/8 |
5 1/4 |
1 15/16 |
8 |
1 |
7 1/4 |
21 |