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Unit:mm

Metallic Tube Connections for Fluid Power and General use — Part 3: O-ring Face Seal Connectors [Tube nuts]

ISO 8434-3 - 2005

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国际ISO 8434-3 - 2005 ISO8434-3 8434-3ISO Metallic Tube Connections for Fluid Power and General use — Part 3: O-ring Face Seal Connectors [Tube nuts]
For thread diameter
6 8 10 12 16 20 22 25 30 38
d Nominal Size (inch)
Thread minor diameter /min (mm)
Thread minor diameter /max (mm)
PP thread number per inch
d1 Nominal Size
min
max
d2 Nominal Size
min
max
d3 Nominal Size
min
max
d4 Nominal Size
min
max
L1 Nominal Size
min
max
L2 min
L3 Nominal Size
min
max
L4 min
L5 min
L6 min
r max=nominal size
min
s
R ±0.13
9/16 5/8 11/16 13/16 1 1 3/16 1 5/16 1 7/16 1 11/16 2
12.9 14.5 15.9 19.1 23.6 28.0 31.2 34.4 40.7 48.7
13.1 14.7 16.1 19.3 23.8 28.3 31.5 34.7 41.0 49.0
18 UNF 18 UNF 16 UN 16 UN 14 UNS 12 UN 12 UN 12 UN 12 UN 12 UN
10.50 12.00 13.55 16.60 21.10 24.15 27.30 29.10 36.00 44.00
10.40 11.90 13.45 16.50 21.00 24.05 27.20 29.00 35.90 43.90
10.60 12.10 13.65 16.70 21.20 24.25 27.40 29.20 36.10 44.10
16.0 18.0 21.0 23.0 29.0 34.5 39.5 39.5 48.5 58.0
15.7 17.7 20.7 22.7 28.7 34.2 39.2 39.2 48.2 57.7
16.3 18.3 21.3 23.3 29.3 34.8 39.8 39.8 48.8 58.3
- - - - 26.0 31.0 34.0 37.0 43.5 51.5
- - - - 25.7 30.7 33.7 36.7 43.2 51.2
- - - - 26.3 31.3 34.3 37.3 43.8 51.8
14.7 16.3 17.8 21.0 - - - - - -
14.5 16.1 17.6 20.8 - - - - - -
14.9 16.5 18.0 21.2 - - - - - -
15.0 16.0 17.0 20.0 24.0 26.5 26.5 27.5 27.5 27.5
14.5 15.5 16.5 19.5 23.5 26.0 26.0 27.0 27.0 27.0
15.5 16.5 17.5 20.5 24.5 27.0 27.0 28.0 28.0 28.0
9.0 9.0 9.5 11.5 13.5 14.5 14.5 14.5 14.5 14.5
3.00 4.00 4.00 5.00 5.50 6.50 6.50 7.00 7.00 7.00
2.75 3.75 3.75 4.75 5.25 6.25 6.25 6.75 6.75 6.75
3.25 4.25 4.25 5.25 5.75 6.75 6.75 7.25 7.25 7.25
10.5 11.0 12.0 14.0 17.0 18.5 18.0 18.5 17.0 15.5
0.4 0.4 0.4 0.5 0.5 0.7 0.7 0.7 0.9 0.9
8.5 9.0 10.0 12.0 15.0 16.5 16.0 16.5 15.0 13.5
0.15 0.15 0.15 0.15 0.25 0.25 0.25 0.40 0.40 0.40
0.00 0.00 0.00 0.00 0.10 0.10 0.10 0.25 0.25 0.25
17 19 22 24 30 36 41 41 50 60
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
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