Table 4.11 Flare-Type Hydraulic Tube Fittings
Torque Value
6
Flats from Finger
Tight (FFFT)
SAE No.
Tube Size
O.D.(in.)
Thread
Size (in.)
Nut Size
Across Flats
(in.)
ft·lbf
N·m
Flats
Turns
3
3/16
3/8
7/16
6
8
1
1/6
4
1/4
7/16
9/16
9
12
1
1/6
5
5/16
1/2
5/8
12
16
1
1/6
6
3/8
9/16
11/16
18
24
1
1/6
8
1/2
3/4
7/8
34
46
1
1/6
10
5/8
7/8
1
46
62
1
1/6
12
3/4
1-1/16
1-1/4
75
102
3/4
1/8
14
7/8
1-3/8
1-3/8
90
122
3/4
1/8
16
1
1-5/16
1-1/2
105
142
3/4
1/8
6.
Torque values shown are based on lubricated connections as in reassembly.
169820
113
Revision A
