Template Date: 1994_04_22
STANDARD TORQUE DATA FOR HYDRAULIC TUBES AND FITTINGS
Above torque figures are recommended for plain, cadmium or zinc plated fittings, dry or wet installations and swivel nuts either
swaged or brazed. These torques are not recommended for tubes 1/2 inch (12.7 mm) O.D. and larger with wall thickness of 0.035
inch (0.889 mm) or less. The torque is specified for 0.035 inch (0.889 mm) wall tubes on each application individually.
TUBE NUTS
FOR 37
°
FLARED FITTINGS
O-RING BOSS PLUGS, ADJUSTABLE FITTING
LOCK NUTS, SWIVEL JIC - 37
°
SEATS
SIZE
TUBING O.D.
THREAD
SIZE
LB FT Nm LB FT Nm
Inches mm Min Max Min Max Min Max Min Max
4 1/4 6.4 7/16-20 9 12 12 16 6 10 8 14
5 5/16 7.9 1/2-20 12 15 16 20 10 15 14 20
6 3/8 9.5 9/16-18 21 24 29 33 15 20 20 27
81/212.73/4-183540475425303441
105/815.97/8-14 5358727935404754
12 3/4 19/1 1-1/16-12 77 82 104 111 60 70 81 95
14 7/8 22.2 1-3/16-12 90 100 122 136 70 80 95 109
16 1 25.4 1-51/6-12 110 120 149 163 80 90 108 122
20 1-1/4 31.8 1-5/18-12 140 150 190 204 95 115 129 156
24 1-1/2 38.1 1-7/8-12 160 175 217 237 120 140 163 190
32 2 50.8 2-1/2-12 225 240 305 325 250 300 339 407