TM 5-3895-379-23-2
0284
GENERAL TORQUE VALUES - Continued
Inch Series Four Bolt Flange Fittings Service Recommendations - Continued
Table 21. Inch Series Four Bolt Flange Fitting Torque Values.
Nominal
lb-ft
Nm
Cap Screw Size
Flange Size
Min Max
Min Max
1/2
5/6-18 UNC
15
23
20
31
3/4
3/8-16 UNC
21
40
28
54
1
3/8-16 UNC
27
40
37
54
1-1/4
7/16-14 UNC
35
63
47
85
1-1/2
1/2-13 UNC
46
97
62
131
2
1/2-13 UNC
54
97
73
131
2-1/2
1/2-13 UNC
79
97
107
131
3
5/8-11 UNC
117
195
158
264
3-1/2
5/8-11 UNC
117
195
158
264
4
5/8-11 UNC
117
195
158
264
5
5/8-11 UNC
117
195
158
264
03/15/2011Rel(1.8)root(torquewp)wpno(M00222)