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U26
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
4300 Catalog
General Technical
Dimensions and pressures for reference only, subject to change.
Nominal Tube OD
1)
Thread Size
d2 dia.
3)
d3 dia. d4 dia. d5 dia.
4)
L1
L2
5)
L3
3)
,
6)
L4
Z
Nom
2)
Inch
Metric
ANSI B1.1
Full
SAE
(ISO 263)
min.
min.
+0.13 +0.4 min. max. Thread ±1°
Parker
Dash
-0.00
-0.0
min.
O-ring
Size
(in)
(mm)
(in)
(mm)
(mm)
(mm)
(mm) (mm) (mm) (mm)
(mm) deg
Size
7)
-2
1/8
—-
5/16-24 UNF-2B
17
1.6
11
9.1
1.9
12.0
1.6
10.0
12°
3-902
-3
3/16
4
3/8-24 UNF-2B
19
3.2
13
10.7
1.9
12.0
1.6
10.0
12°
3-903
-4
1/4
6
7/16-20 UNF-2B
21
4.4
15
12.4
2.4
14.0
1.6
11.5
12°
3-904
-5
5/16
8
1/2-20 UNF-2B
23
6.0
16
14.0
2.4
14.0
1.6
11.5
12°
3-905
-6
3/8
10
9/16-18 UNF-2B
25
7.5
18
15.6
2.5
15.5
1.6
12.7
12°
3-906
-8
1/2
12
3/4-16 UNF-2B
30
10.0
22
20.6
2.5
17.5
2.4
14.3
15°
3-908
-10
5/8
14, 15, 16 7/8-14 UNF-2B
34
12.5
26
23.9
2.5
20.0
2.4
16.7
15°
3-910
-12
3/4
18, 20
1 1/16-12 UN-2B
41
16.0
32
29.2
3.3
23.0
2.4
19.0
15°
3-912
-14
7/8
22
1 3/16-12 UN-2B
45
18.0
35
32.3
3.3
23.0
2.4
19.0
15°
3-914
-16
1
25, 28
1 5/16-12 UN-2B
49
21.0
38
35.5
3.3
23.0
3.2
19.0
15°
3-916
-20
1 1/4
30, 32, 35 1 5/8-12 UN-2B
58
27.0
48
43.5
3.3
23.0
3.2
19.0
15°
3-920
-24
1 1/2
38, 42
1 7/8-12 UN-2B
65
33.0
54
49.8
3.3
23.0
3.2
19.0
15°
3-924
-32
2
50
2 1/2-12 UN-2B
88
45.0
70
65.7
3.3
23.0
3.2
19.0
15°
3-932
SAE J1926-1 —
SAE Straight Thread O-ring Port (ISO 11926-1)
(Conforms to MS16142. Does NOT conform to MS33649
(8)
.)
UN/UNF Threads
Table U18 — Port Detail — SAE J1926-1 (ISO 11926-1)
1) Nominal tube OD is shown for the standard inch sizes and the conversion to equivalent millimeter sizes. Figures are for
reference only, as any boss can be used for a tubing size depending upon other design criteria.
2) See SAE J846 for more information.
3) If face of boss is on a machined surface, dimensions d2 and L3 need not apply as long as corner radius
R
0.2 is
maintained.
4) Diameter d5 shall be concentric with thread pitch diameter within 0.004 in (0.1mm) FIM, and shall be free from
longitudinal and spiral tool marks. Annular tool marks up to 100 µin (2.5µm) max shall be permissible.
5) Tap drill depths given require use of bottoming taps to produce the specified full thread lengths. Where standard taps are
used, the tap drill depths must be increased accordingly.
6) Maximum recommended spotface depth to permit sufficient wrench grip for proper tightening of the fitting or locknut.
7) 90 durometer nitrile is standard for hydraulic applications.
8) Se
e
page U27
.
NOTE:
For port tapping tools, se
e
page S34
. F
or assembly torques s
ee
page T5
.
0.1