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Page Title:
Table D-3. Locknut Breakaway Torque Values |
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 TM 9-2320-285-24-2
Table D-3. Locknut Breakaway Torque Values
MINIMUM BREAK-
THREAD
AWAY TORQUE
SIZE
(POUNDS INCH)
10-32
2.0
1l4-28
3.5
5/16-24
6.5
3/8-24
9.5
7/16-20
14.0
1/2-20
18.0
9/16-18
24.0
5/8-18
32.0
3/4-16
50.0
7/8-14
70.0
1-12
90.0
1-1/8-12
117.0
1-1/4-12
143.0
NOTE
To determine breakaway torque,
thread locknut onto screw or bolt until
at least two threads stick out.
Locknut shall not make contact with
a mating part. Stop the locknut.
Torque necessary to begin turning
locknut again is the breakaway
torque. Do not reuse locknuts that
do not meet minimum breakaway
torque.
D-4
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