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Torque – Hydraulic Tubes and Fittings
NOTICE: The torque values given are for
Standard Torque Data for Hydraulic Tubes and Fittings
Size
Tubing OD
Inches
2
1/8
3
3/16
4
1/4
5
5/16
6
3/8
8
1/2
10
5/8
12
3/4
14
7/8
16
1
20
1-1/4
24
1-1/2
32
2
Fittings into steel / forged cylinder spuds, steel bodies, cast iron bodies
Size
Tubing OD
Inches
4
1/4
5
5/16
6
3/8
8
1/2
10
5/8
12
3/4
14
7/8
16
1
20
1-1/4
24
1-1/2
Size
Tubing OD
Inches
4
1/4
6
3/8
8
1/2
10
5/8
12
3/4
14
7/8
16
1
20
1-1/4
24
1-1/2
INTRODUCTION
DRY TORQUES
Hoses / Tubes to Steel Fittings
37° Flared Fittings
Thread Size
mm
3.2
5/16-24
4.8
3/8-24
6.4
7/16-20
7.9
1/2-20
9.5
9/16-18
12.7
3/4-18
15.9
7/8-14
19.1
1-1/6-12
22.2
1-3/16-12
25.4
1-5/16-12
31.8
1-5/8-12
38.1
1-7/8-12
50.8
2-1/2-12
O-ring Boss
Thread Size
mm
6.4
7/16-20
7.9
1/2-20
9.5
9/16-18
12.7
3/4-18
15.9
7/8-14
19.1
1-1/6-12
22.2
1-3/16-12
25.4
1-5/16-12
31.8
1-5/8-12
38.1
1-7/8-12
Fittings into aluminum bodies
O-ring Boss
Thread Size
mm
6.4
7/16-20
9.5
9/16-18
12.7
3/4-18
15.9
7/8-14
19.1
1-1/6-12
22.2
1-3/16-12
25.4
1-5/16-12
31.8
1-5/8-12
38.1
1-7/8-12
84425026 11/04/2011
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Nm
Min
Max
10
11
13
14
18
19
23
25
29
34
59
64
92
102
128
143
152
169
176
185
206
217
258
270
398
420
Nm
Min
Max
18
20
23
26
29
33
49
53
59
64
93
102
122
134
151
166
198
218
209
231
Nm
Min
Max
9
15
23
34
34
54
41
75
75
108
108
129
115
163
163
224
183
258
20
LB FT
Min
Max
7
8
10
11
13
14
17
18
22
24
43
47
68
76
95
106
113
124
130
136
152
160
190
200
294
310
LB FT
Min
Max
13
15
17
19
22
24
40
43
43
48
75
68
90
99
112
123
146
161
154
170
LB FT
Min
Max
7
11
17
25
25
40
30
55
55
80
80
95
85
120
120
165
135
190
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