THRUSH AIRCRAFT, INC – MODEL S2R-G10
AIRCRAFT MAINTENANCE MANUAL
Table 2-3: TORQUE CHART
BOLTS
FINE
BOLTS
STEEL - TENSION
THREAD
STEEL - TENSION STEEL - SHEAR STEEL
AN 3 thru AN 20
SERIES
MS 20004 thru MS 20024 NAS 333 - NAS 340 ANY
AN 42 thru AN 49
ONLY
NAS 144 thru NAS 158 NAS 464
AN 73 thru AN 81
NAS 624 thru NAS 644 NAS 583 - NAS 590
AN 173 thru AN 186
NAS 1202 thru NAS 1210 NAS 1103 thru
AN 509 NK9
NAS 1303 thru NAS 1320 NAS 1120
AN 525 NK525
NAS 6603 thru NAS 6620 NAS 6203 - NAS 6220
MS 20033 thru MS 20046
NAS 172
MS 20073
NAS 174
MS 24604
NAS 517
MS 27039
NUTS NUTS
STEEL - TENSION STEEL - SHEAR STEEL - TENSION STEEL – SHEAR
AN 310 AN 320
AN310 AN320 MS17826
AN 315 AN 364
AN315 AN364
AN 363 MS 17825
AN363 MS 17825
AN 365 MS 20364
AN365 MS 20364
MS 17829F MS 21083N
MS18729F MS 21083N
MS 20365 MS 21245
MS20365 MS 21245
MS 20500 NAS 679
MS20500 NAS 679
MS 21042 NAS 1022N or A
MS21042 NAS 1022N or A
MS 21044N NAS 1291
MS21044N NAS 1291
MS 21045
MS21045
NAS 1021
NAS 1021
Torque Limits, in# Torque Limits, in#
NUT/BOLT
Torque Limits, in# Torque Limits, in#
Min. Max. Min. Max.
SIZE
Min. Max. Min. Max. +/- 5%
12 15 7 9
8-36
-- -- -- -- --
20 25 12 15
10-32
25 30 15 20 16
50 70 30 40
1/4-28
80 100 50 60 35
100 140 60 85
5/16-24
120 145 70 90 70
160 190 95 110
3/8/24
200 250 120 150 100
450 500 270 300
7/16-20
520 630 300 400 180
480 690 290 410
1/2-20
770 950 450 550 240
800 1,000 480 600
9/16-18
1,100 1,300 650 800 320
1,100 1,300 660 780
5/8-18
1,250 1,550 750 950 480
2,300 2,500 1,300 4,500
3/4-16
2,650 3,200 1,600 1,900 880
2,500 3,000 1,500 4,800
7/8-14
3,550 4,350 2,100 2,600 1,500
3,700 4,500 2,200 3,300
1-14
4,500 5,500 2,700 3,300 2,400
5,000 7,000 3,000 4,200
1 1/8-12
6,000 7,300 3,600 4,400 4,000
9,000 11,000 5,400 6,600
1 1/4-12
11,000 13,400 6,600 8,000 5,600
CAUTION: Torque values are for dry threads. If oil contamination is suspected, clean threads with acetone.
NOTE: Tension nuts may be used on shear bolts, but shear nuts may not be used on tension bolts.
2-29
NOTE: For torque values for wing splice and wing attachment hardware, see Table 7-3
Effective: 03/26/2010 Page
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