TM 5-3895-379-23-2
0284
GENERAL TORQUE VALUES - Continued
O-Ring Face Seal Fittings With Metric Hex Nut and Stud End For Standard Pressure Service
Recommendations - Continued
6.
Turn fitting into the boss by hand until face of nut or washer squeezes the O-ring into the seat and contacts
face of boss. Loosen adjustable fittings no more than one turn for alignment.
7.
Hold connections together while tightening nut to ensure O-ring remains in place.
8.
Tighten fitting or nut to torque value shown. Use a second wrench to hold the fitting in position or to keep hose
from twisting while tightening nut.
9.
Figure 19 shows the O-Ring Face Seal Fittings with Metric Hex Nut and Stud End for Standard Pressure.
Bulkhead Union and Nut
90 Degree Adjustable Stud Elbow
90 Degree Swivel Elbow
Straight Stud
External Hex Stud End Plug
M1334SWR
Figure 19.
O-Ring Face Seal Fittings with Metric Hex Nut and Stud End for Standard Pressure.
10.
Table 16 lists the O-Ring Face Seal Fittings with Metric Hex Nut and Stud End Torque Values.
Table 16. O-Ring Face Seal Fittings with Metric Hex Nut and Stud End Torque Values.
O-Ring Face Seal Hose or Tube
Nominal Tube OD or Hose ID
Bulkhead Nut
Swivel Nut
Metric
Inch Tube OD or
Thread
Hex Size
Torque
Hex Size
Torque
Tube OD
Hose ID
Size
mm
Dash Size
in. (mm)
in.
mm
lb-ft (Nm)
mm
lb-ft (Nm)
4
-2
0.125
-
-
-
-
-
(3.18)
5
-3
0.188
-
-
-
-
-
(4.78)
6
-4
0.250
9/16-18
17
12 (16)
22
24 (32)
(6.35)
8
-5
0.312
-
-
-
-
-
(7.92)
03/15/2011Rel(1.8)root(torquewp)wpno(M00222)