TM 5-3895-379-23-2
0284
GENERAL TORQUE VALUES - Continued
Flared Connections-Straight or Tapered Threads Service Recommendations - Continued
8.
Figure 16 shows the Tapered Thread fitting configuration.
M1331SWR
Figure 16. Tapered Thread.
Table 11.
Straight Thread b
Tapered Thread
Thread Size
lb-ft
Nm
lb-ft
Nm
1/8
11
15
-
-
1/4
15
20
33
45
3/8
21
29
51
69
1/2
36
49
69
93
3/4
51
69
130
176
1
116
157
253
343
1-1/2
145
196
398
539
2
188
255
434
588
a
Torque tolerance is 10%.
b
With seat face.
NOTE: If female thread is cast iron (control valves, brake valves motors, etc.), torque must be reduced
approximately 10%.
03/15/2011Rel(1.8)root(torquewp)wpno(M00222)