- 12 3/4 430-455 4.86-5.15
- 16 1 900-950 10.17-10.73
- 20 1-1/4 900-950 10.17-10.73
- 24 1-1/2 1000-1075 11.30-12.15
- 28 1-3/4 1000-1075 11.30-12.15
- 32 2 1000-1075 11.30-12.75
(3) Torque values for flared tube steel coupling nuts.
---------------------------------------------------------------------------
OUTSIDE
DASH DIAMETER TORQUE VALUE
SIZE INCHES lbf.in m.daN
---------------------------------------------------------------------------
-2 1/8 90-100 1.02-1.13
-3 3/16 90-100 1.02-1.13
-4 1/4 135-150 1.53-1.70
-5 5/16 180-200 2.03-2.26
-6 3/8 270-300 3.05-3.39
-8 1/2 450-500 5.09-5.65
- 10 5/8 650-700 7.35-7.91
- 12 3/4 900-1000 10.17-11.30
- 14 7/8 1000-1100 11.30-12.43
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OUTSIDE
DASH DIAMETER TORQUE VALUE
SIZE INCHES lbf.in m.daN ---------------------------------------------------------------------------
- 16 1.0 1200-1400 13.56-15.82
- 20 1-1/4 1200-1400 13.56-15.82
- 24 1-1/2 1500-1800 16.95-20.34
NOTE : Tube nominal size or outside diameter is equal to the amount
____
of torque that is given in the table.
- Hold the coupling hex with a wrench when you tighten or loosen the B-nut.
(4) Torque values for flareless tube steel coupling nuts.
-------------------------------------------------------------------------NOMINAL OUTSIDE DIAMETER TORQUE VALUE SIZE INCHES lbf.in m.daN -------------------------------------------------------------------------
-3 3/16 95-105 1.07-1.19
-4 1/4 135-145 1.53-1.64
-5 5/16 170-190 1.92-2.15
-6 3/8 215-245 2.43-2.77
-8 1/2 430-470 4.86-5.31
- 10 5/8 620-680 7.01-7.68
- 12 3/4 855-945 9.66-10.68
- 16 1 1140-1260 12.88-14.24
- 20 1-1/4 1520-1680 17.18-18.98
- 24 1-1/2 1900-2100 21.47-23.73
NOTE : Tube nominal size or outside diameter is equal to the amount
____
of torque that is given in the table.
- Hold the coupling hex with a wrench when you tighten or loosen the B-nut.
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(5) Torque values for screws, bolts, and studs with castellated nuts (MS21042, MS21043, NAS679, Specification 48 FT) and low height nutplates.
---------------------------------------------------------------------------THREAD NOMINAL SIZE TORQUE VALUE INCHES lbf.in m.daN ---------------------------------------------------------------------------
6-32 8-10 0.09-0.11
8-32 12-15 0.14-0.17
10-32 20-25 0.23-0.28
1/4-28 50-70 0.57-0.79
5/16-24 100-140 1.13-1.58
3/8-24 160-190 1.81-2.15
7/16-20 450-500 5.08-5.65
1/2-20 480-690 5.42-7.80
9/16-18 800-1000 9.04-11.30
5/8-18 1100-1300 12.43-14.69
---------------------------------------------------------------------------THREAD NOMINAL SIZE TORQUE VALUE INCHES lbf.ft m.daN
---------------------------------------------------------------------------3/4-16 192-208 26.11-28.29 7/8-14 208-250 28.29-34.00
1-12 308-458 41.89-62.29
1-1/8-12 417-583 56.71-79.29
1-1/4-12 750-917 102.00-124.71
(6) Torque values for AN316 and NSA1022 shear type nuts.
---------------------------------------------------------------------------THREAD NOMINAL SIZE TORQUE VALUE INCHES lbf.in m.daN
---------------------------------------------------------------------------6-32 5-7 0.06-0.08 8-32 8-10 0.09-0.11
10-32 12-15 0.14-0.17
1/4-28 30-40 0.34-0.45
5/16-24 60-85 0.68-0.96
3/8-24 95-110 1.07-1.24
7/16-20 270-300 3.05-3.39
1/2-20 290-410 3.28-4.63
9/16-18 480-600 5.42-6.78
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