MIL-PRF-20042E
TABLE VIII.
Plain flanges, 250-pound, standard sizes. 3/
NPS
O.D.
A
C
D 1/
E
S 2/1/
T 2/1/
V
W 1/
Radius
P
(min)
(min)
(min)
(min)
Inch
Inches
Inch
Inches
Inches
Inches
Degree
Inches
Inches
Inches
Inches
0.250
0.540
0.008
1.188
0.688
1/4
0.266
---
0.398
3.250
0.540
0.813
.250
.675
.008
1.250
3/8
.688
.313
---
.532
.675
3.375
1.000
.250
.840
.008
1.313
1/2
.688
.375
---
.697
840
3.563
1.156
.250
1.050
.008
1.313
3/4
.688
.406
.907
---
1.050
3.813
1.344
.250
.016
1.438
1.315
1
.750
.438
1.171
---
1.315
4.250
1.625
.313
.016
1.625
1.660
1-1/4
.500
.813
1.502
---
1.660
4.500
2.000
.313
.016
1.750
1.900
1-1/2
.625
.813
1.742
---
1.900
5.063
2.250
.313
.016
1.750
2.375
2
.656
.813
2.186
---
2.375
5.563
2.750
.031
.313
1.813
2.875
2-1/2
.625
.938
2.686
---
2.875
3.250
6.125
.031
1.813
.313
3
3.500
.625
.938
3.286
---
3.500
3.875
6.625
.031
1.938
.375
3-1/2
4.000
.688
1.000
3.786
4.000
---
4.375
7.188
.031
1.938
.375
4
4.500
.688
1.000
4.252
4.500
---
4.938
7.688
.047
2.063
.375
5
5.563
.688
5.278
1.063
5.563
2
6.000
9.063
.047
2.313
6
.438
.750
6.625
6.321
1.188
6.625
2
7.063
10.125
.063
2.688
8
.438
.938
8.625
8.286
1.313
8.625
2
9.125
12.375
.063
3.000
10
.500
1.063
10.750
10.325
1.438
10.750
2
11.313
15.000
.063
3.250
12
.500
1.250
12.750
12.322
1.500
12.750
13.438
2
17.625
1/ For tolerance see 3.6.3.
2/ The eccentricity of bores "S" and "T" shall be not greater than that shown in column P where measured.
3/ See figure 2.
11
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