Recommended Nut Torques; Torque Values - Cessna 150 STANDARD Service Manual

RECOMMENDED NUT TORQUES
THE TORQUE VALUES STATED ARE POUND-INCHES, RELATED
ONLY TO STEEL NUTS ON OIL-FREE CADMIUM PLATED THREADS.
FINE THREAD SERIES
TENSION
SHEAR
TAP
SIZE TORQUE
TORQUE
STD
ALT
STD ALT
(NOTE 1)
(NarE 2) (NarE 3)
(NOTE 2)
8-36
12-15
7-9
10-32
20-25
20-28 12-15 12-19
1/4-28
50-70
50-75
30-40 30-48
5/16-24
100-140
100-150
60-85
60-106
3/8-24
160-190
160-260
95-110
95-170
7/16-20
450-500
450-560
270-300 270-390
1/2-20
480-690
480-730
290-410
290-500
9/16-18
800-1000
800-1070
480-600'
480-750
5/8-18
1100-1300
1100-1600
660-780
660-1060
3/4-16
2300-2500
2300-3350
1300-1500 1300-2200
7/8-14
2500-3000
2500-4650
1500-1800 1500-2900
1-14 3700-5500
3700-6650
2200-3300
2200-4400
1-1/8-12
5000-7000
5000-10000
3000-4200
3000-6300
1-1/4-12
9000-11000
9000-16700
5400-6600
5400-10000
COARSE THREAD SERIES
(NarE 4)
(NarE 5)
8-32
12-15 7-9
10-24
20-25 12-15
1/4-20
40-50
25-30
5/16-18
80-90
48-55
3/8-16
160-185 95-100
7/16-14
235-255 140-155
1/2-13
400-480 240-290
9/16-12
500-700 300-420
5/8-11
700-900 420-540
3/4-10
1150-1600 700-950
7/8-9
2200-3000 1300-1800
1-8 3700-5000 2200-3000
1-1/8-8 5500-6500 3300-4000
1-1/4-8
6500-8000 4000-5000
NOTES
1. Covers AN310, AN315, AN345, AN363, MS20365, MS21042, MS21044, MS21045 and MS21046.
2. When using AN310 or AN320 castellated nuts where alignment between the bolt and cotter pin slots is not
reached using normal torque values, use alternate torque values or replace the nut.
3. Covers AN316, AN320, MS20364 and MS21245.
4. Covers AN363, MS20365, MS21042, MS21043, MS21044, MS21045 and MS21046.
5. Covers AN340.
I~~~J)~N\
DO NOT REUSE SELF-LOCKING NUTS.
The above values are recommended for all installation procedures contained in this manual, except where
other values are stipulated. They are not to be used for checking tightness of installed parts during service.
Figure 1-4. Torque Values
1-4 Change 3