Home > Hydraulic Hose & Accessories > Thread Guide > Flareless Tube

Flareless Tube

The imperial size flareless fitting utilizes a metal to metal seal between the 24° seat on the male threaded fitting and either a compression sleeve on a piece of tube, stand-pipe or 24° ball nose machined fitting. To achive a leak free connection all sealing surfaces must be smooth and free of any damage or contamination.

Dash
Size

Inch
Size

Thread

Male

Thread OD

mm in

Female

Thread ID

mm in

2
3
4
5
6
8
10
12
14
16
20
24

1/8”
3/16”
1/4”
5/16”
3/8”
1/2”
5/8”
3/4”
7/8”
1”
1-1/4”
1-1/2”

24
24
20
20
18
16
14
12
12
12
12
12

7.9    0.31
9.6    0.38
11.2    0.44
12.7    0.50
14.2    0.56
19.0    0.75
22.3    0.88
26.9    1.06
30.2    1.19
33.3 1.31
41.6    1.63
47.6    1.88

6.9 0.27
8.4 0.33
9.9 0.39
11.4 0.45
12.7 0.50
17.5 0.69
20.7 0.81
24.6 0.97
28.2 1.11
31.2 1.23
39.3 1.55
45.6 1.80