22
TM 5-3805-290-23-2
TORQUE LIMITS
SCOPE
This work package lists standard torque values and provides general information for applying torque. Special torque val-
ues and tightening sequences are indicated in maintenance procedures for applicable components.
GENERAL
1.
Always use torque values listed in (Tables 1 thru 6) when maintenance procedure does not show a specific torque value.
a.
(Tables 1 thru 3) provides torque limits for SAE standard fasteners.
b.
(Tables 4 thru 6) provides torque limits for metric fasteners.
10%.
2.
Unless otherwise indicated, standard torque tolerance shall be
3.
Torque values listed are based on clean, dry threads. Reduce torque by 10% when engine oil is used as lubricant. If new
plated capscrews are used, reduce torque by 20%.
4.
If maintenance procedures do not specify a tightening order, use the following guides:
a.
Unless otherwise specified, lubricate threads of fasteners with oil (OE/HDO-10 or OEA-30).
b.
When tightening fasteners above 30 lb-ft (41 Nm), use torque pattern only to tighten to 70% of final value (multi-
ply final value by 0.7). Repeat pattern until final value is reached.
c.
Tighten circular patterns using circular torque pattern and tighten straight patterns using straight torque pattern.
1
8
5
12
10
4
3
11
9
6
7
2
CIRCULAR TORQUE PATTERN
8
53 1246
9
7
STRAIGHT TORQUE PATTERN
