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MAINTENANCE & SPECIFICATIONS
Hydraulic Fitting Torque
Specifications
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
TORQUE SPECIFIED IN FOOT POUNDS
PARKER® BRAND FITTINGS
Dash
37 Deg.
Size
JIC
-4
11-13
-5
14-16
-6
20-22
-8
43-47
-10
55-65
-12
80-90
-16
115-125
-20
160-180
-24
185-215
-32
250-290
AEROQUIP® BRAND FITTINGS
Dash
37 Deg.
Size
JIC
-4
11-12
-5
15-16
-6
18-20
-8
38-42
-10
57-62
-12
79-87
-14
--------------
-16
108-113
-20
127-133
-24
158-167
4-2
)
O-ring
O-ring
(ORS)
boss
15-17
13-15
---------------
21-23
34-36
25-29
58-62
40-44
100-110
58-62
134-146
75-85
202-218
109-121
248-272
213-237
303-327
238-262
--------------
310-340
O-ring
O-ring
(ORS)
boss
10-12
14-16
---------------
16-20
18-20
24-26
32-35
50-60
46-50
75-80
65-70
125-135
--------------
160-180
92-100
200-220
125-140
210-280
150-165
270-360
GATES® BRAND FITTINGS
Dash
37 Deg.
Size
JIC
-4
10-11
-5
13-15
-6
17-19
-8
34-38
-10
50-56
-12
70-78
-14
--------------
-16
94-104
-20
124-138
-24
156-173
-32
219-243
O-ring
O-ring
(ORS)
boss
10-12
14-16
---------------
---------------
18-20
24-26
32-40
37-44
46-56
50-60
65-80
75-83
65-80
--------------
92-105
111-125
125-140
133-152
150-180
156-184
--------------
--------------
7K555
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