Piper Navajo PA-31 Service Manual page 36

Nut-bolt
size
PIPER NAVAJO SERVICE MANUAL
TABLE II-II. RECOMMENDED NUT TORQUES (inch-pounds) (cont.)
FINE THREAD SERIES
BOLTS
Steel Tension
BOLTS
Steel Tension
BOLTS
Aluminum
AN 3 thru AN 20
AN 42 thru AN 49
AN 73 thru AN 81
AN 173 thru AN 186
MS 20033 thru MS 20046
MS 20073
MS 20074
AN 509 NK9
MS 24694
AN 525 NK525
MS 27039
MS 20004 thru MS 20024
NAS 144 thru NAS 158
NAS 333 thru NAS 340
NAS 583 thru NAS 590
NAS 624 thru NAS 644
NAS 1303 thru NAS 1320
NAS 172
NAS 174
NAS 517
NAS 517 Steel shear bolt
NAS 464
NUTS
AN 3DO thru AN 2000
AN 173DD thru AN 186DD
AN 509DD
AN 525D
MS 27039D
MS 24694DD
NUTS
NUTS
Steel Tension Steel Shear Steel Tension
AN 310
AN 315
AN 363
AN 365
NAS 1021
MS 17825
MS 21045
MS 20365
MS 20500
NAS 679
AN 320
AN 364
NAS 1022
MS 17826
MS 20364
AN 310
AN 315
AN 363
AN 365
MS 17825
MS 20365
MS 21045
NAS 1021
NAS 679
NAS 1291
Steel Shear
AN 320
AN 364
NAS 1022
MS 17826
MS 20364
Alum Tension
AN 365D
AN 310D
NAS 1021D
Alum Shear
AN 320D
AN 364D
NAS 1022D
Torque Limits Torque Limits Torque Limits Torque Limits
in-lbs in-lbs in-lbs
in-lbs
Torque Limits Torque Limits
in-lbs in-lbs
Min. Max.
8 -36
10 -32
1/4-28
5/16-24
3/8-24
7/16-20
1/2-20
9/16-18
5/8-18
3/4- 16
7/8-14
1 -14
1 1/8-12
1/4-12
12
38
80
160
240
550
480
800
1,100
2,300
2.500
3.700
5,000
9,000
NOTE
15
43
100
200
270
600
690
1 000
1,300
2.500
3,000
4,500
7,000
11.000
Min
Max.
Min
Max. Min. Max Min Max Min.
BOLT AND NUT SIZES 10 THROUGH 7/16 INCLUDE FRICTION DRAG TORQUE
7 9
5
10 3
30 33 43 48 33 38 28 33 23
60 70 110 130 80 90
60 75 45
120 145 180 205 130 150 100 1 25 85
175 190 280 330 200 230 155 1 190 125
370 400 620 730 400
500 280 380 210
290 410 770 950 450 550 280
410 160
480 600 1.100
1,300 650 800 380 580 230
660 780
1,250 1,550 750 950 550
670 270
1.300 1,500 2.650 3,200 1,600 1,900 950 1,250 560
1.500 1,800 3,550 4.350 2,100 2.600 1,250
1.900 750
2,200 3,300 4.500 5.500 2,700 3,300 1,600 2,400
950
3,000
4,200 6,000 7,300 3,600 4,400 2,100
3,200 1,250
5,400 6.600
11,000 13,400 6,600 8,000 3,900 5,600 2,300
Max
6
28
60
100
150
270
260
360
420
880
1,200
1,500
2,000
3,650
Revised: 1/29/81
1B12
HANDLING AND SERVICING