STANDARD SPECIFICATIONS
2-3
Hydraulic Fitting Torque Specifications
TORQUE SPECIFIED IN FOOT POUNDS
PARKER® BRAND FITTINGS
AEROQUIP® BRAND FITTINGS
GATES® BRAND FITTINGS
37 degree JIC, ORS, &ORB (REV. 10/97
)
This chart provides tightening torques for general purpose applications when special torques are not specified on process or drawing.
Assembly torques apply to plated nuts and capscrews assembled without supplemental lubrication (as received condition). They do
not apply if special graphite moly-disulfide or other extreme pressure lubricants are used. When fasteners are dry (solvent cleaned)
add 33% to as received condition torque. Bolt head identification marks indicate grade and may vary from manufacturer to
manufacturer. Thick nuts must be used on grade 8 capscrews. Use value in [ ] if using prevailing torque nuts
Dash
Size
37 Deg.
JIC
O-ring
(ORS)
O-ring
boss
-4
11-13
15-17
13-15
-5
14-16
---------------
21-23
-6
20-22
34-36
25-29
-8
43-47
58-62
40-44
-10
55-65
100-110
58-62
-12
80-90
134-146
75-85
-16
115-125
202-218
109-121
-20
160-180
248-272
213-237
-24
185-215
303-327
238-262
-32
250-290
--------------
310-340
Dash
Size
37 Deg.
JIC
O-ring
(ORS)
O-ring
boss
-4
11-12
10-12
14-16
-5
15-16
---------------
16-20
-6
18-20
18-20
24-26
-8
38-42
32-35
50-60
-10
57-62
46-50
75-80
-12
79-87
65-70
125-135
-14
--------------
--------------
160-180
-16
108-113
92-100
200-220
-20
127-133
125-140
210-280
-24
158-167
150-165
270-360
Dash
Size
37 Deg.
JIC
O-ring
(ORS)
O-ring
boss
-4
10-11
10-12
14-16
-5
13-15
---------------
---------------
-6
17-19
18-20
24-26
-8
34-38
32-40
37-44
-10
50-56
46-56
50-60
-12
70-78
65-80
75-83
-14
--------------
65-80
--------------
-16
94-104
92-105
111-125
-20
124-138
125-140
133-152
-24
156-173
150-180
156-184
-32
219-243
--------------
--------------
