Piper PA-24 Comanche, Service Manual

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PIPER COMANCHE SERVICE MANUAL
II - HANDLING AND SERVICING 04/01/09
1B22
TABLE II-IIA. RECOMMENDED NUT TORQUES
Bolts - Steel Bolts - Aluminum
AN 3 thru AN 20 MS 20004 AN 3DD Series
AN 42 thru AN 49 NAS 333 thru NAS 340
AN 525 NAS 464
MS 20033 thru MS 20046 NAS 624 thru NAS 644
MS 20073 NAS 1580
MS 20074 NAS 6203 thru NAS 6220
MS 24694 NAS 6603 thru NAS 6620
MS 27039 NAS 6703 thru NAS 6720
Nuts - Steel Nuts - Aluminum
Tension Shear Tension Shear Tension Shear
AN 310 AN 320 AN 310 AN 320 AN 310D AN 320D
AN 315 MS 20364 AN 315 MS 20364 AN 315D
MS 20365 MS 21083 MS 20365 MS 21083
MS 21042 MS 21245 MS 21042 MS 21245
MS 21044 MS 21044
MS 21045 MS 21045
NAS 679 NAS 679
NAS 1291 NAS 1291
FINE THREAD SERIES - ADD FRICTION DRAG
Nut-Bolt Torque Limits Torque Limits Torque Limits Torque Limits Torque Limits Torque Limits
Size In.-Lbs. In.-Lbs. In.-Lbs. In.-Lbs. In.-Lbs. In.-Lbs.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
8-36 12 15 7 9 5 10 3 6
10-32 20 25 12 15 25 30 15 20 10 15 5 10
1/4-28 50 70 30 40 80 100 50 60 30 45 15 30
5/16-24 100 140 60 85 120 145 70 90 40 65 25 40
3/8-24 160 190 95 110 200 250 120 150 75 110 45 70
7/16-20 450 500 270 300 520 630 300 400 180 280 110 170
1/2-20 480 690 290 410 770 950 450 550 280 410 160 260
9/16-18 800 1,000 480 600 1,100 1,300 650 800 380 580 230 360
5/8-18 1,100 1,300 660 780 1,250 1,550 750 950 550 670 270 420
3/4-16 2,300 2,500 1,300 1,500 2,650 3,200 1,600 1,900 950 1,250 560 880
7/8-14 2,500 3,000 1,500 1,800 3,550 4,350 2,100 2,690 1,250 1,900 750 1,200
1-14 3,700 4,500 2,200 3,300 4,500 5,500 2,700 3,300 1,600 2,400 950 1,500
1-1/8-12 5,000 7,000 3,000 4,200 6,000 7,300 3,600 4,400 2,100 3,200 1,250 2,000
1-1/4-12 9,000 11,000 5,400 6,600 11,000 13,400 6,600 8,000 3,900 5,600 2,300 3,650
COARSE THREAD SERIES - ADD FRICTION DRAG
Nut-Bolt Torque Limits Torque Limits
Size In.-Lbs. In.-Lbs.
Min. Max. Min. Max.
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 95 110
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 1,150 1,600 700 950
7/8-9 2,200 3,000 1,300 1,800
1-8 3,700 5,000 2,200 3,000
1-1/8-8 5,500 6,500 3,300 4,000
1-1/4-8 6,500 8,000 4,000 5,000
NOTE: Unless otherwise specified, torque size No. 6
screws used with self-locking nutplates to no greater
than 4 to 5 in.-lbs.
Use an appropriately calibrated driver.
NOTE MS21042, NAS 1291, and NAS 679 steel nuts may
be used in tension onl
y applications.