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C37
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
Triple-Lok
®
37° Flare Tube Fittings
4300 Catalog
Dimensions and pressures for reference only, subject to change.
KTX
Union Cross
37° Flare (all four ends)
SAE 070501
HPD Base # 033X
PNTX
Plug
37° Flare
SAE 070109
HPD Base # 03CP
Y* – Across wrench flats
FNTX
Cap
37° Flare
SAE 070112
HPD Base # 06CP
T22X
Mountie Cap
TUBE
FITTING
PART #
END SIZE
M
(in.)
Y
(in.)
STANDARD
Dynamic
Pressure
(x 1,000 PSI)
1-4
(in.)
-S -SS -B
4 KTX
1/4
0.89 7/16 7.5 7.7 3.3
5 KTX
5/16
0.95 9/16 6.0
6 KTX
3/8
1.06 9/16 6.0 6.0 3.3
8 KTX
1/2
1.25 3/4 6.0 6.0 3.3
10 KTX
5/8
1.45 7/8 5.0
12 KTX
3/4
1.66 1 1/16 5.0 5.0
16 KTX
1
1.81 1 5/16 4.0
TUBE
FITTING
PART #
END SIZE
C
HEX
(in.)
L3
(in.)
STANDARD
Dynamic
Pressure
(x 1,000 PSI)
1
(in.)
-S -SS -B
2 PNTX
1/8
7/16 0.70
9.0
3 PNTX
3/16
7/16 0.73 7.5 9.0
4 PNTX
1/4
1/2 0.80 7.5 9.0 3.3
5 PNTX
5/16
9/16 0.80 6.0 7.2 3.3
6 PNTX
3/8
5/8 0.84 6.0 7.2 3.3
8 PNTX
1/2
13/16 0.94 6.0 7.2 3.3
10 PNTX
5/8
15/16 1.10 5.0 6.0 3.3
12 PNTX
3/4
1 1/8 1.28 5.0 6.0 3.3
14 PNTX
7/8
1 1/4 1.31 5.0 5.0
16 PNTX
1
1 3/8 1.33 4.5 5.4
20 PNTX
1 1/4 1 11/16 1.45 4.0 4.8
24 PNTX
1 1/2
2
1.66 4.0 4.8
32 PNTX
2
2 5/8 2.05 2.0 2.4
TUBE
FITTING
PART #
END SIZE
C
HEX
(in.)
Z
(in.)
STANDARD
Dynamic
Pressure
(x 1,000 PSI)
1
(in.)
-S -SS -B
2 FNTX
1/8
3/8
0.60 7.5 9.0 3.3
3 FNTX
3/16
7/16
0.66 7.5 9.0 3.3
4 FNTX
1/4
9/16
0.67 7.5 9.0 3.3
5 FNTX
5/16
5/8
0.77 6.0 7.2 3.3
6 FNTX
3/8
11/16
0.81 6.0 7.2 3.3
8 FNTX
1/2
7/8
0.94 6.0 7.2 3.3
10 FNTX
5/8
1
1.07 5.0 6.0 3.3
12 FNTX
3/4
1 1/4
1.24 5.0 6.0 3.3
14 FNTX
7/8
1 3/8
1.26 5.0
16 FNTX
1
1 1/2
1.29 4.5 5.4 2.6
20 FNTX
1 1/4
2
1.39 4.0 4.8
24 FNTX
1 1/2
2 1/4
1.70 4.0 4.8
32 FNTX
2
2 7/8
2.01 2.0 2.4
TUBE
FITTING
PART #
END SIZE
C
(in.)
L
(in.)
STANDARD
Dynamic
Pressure
(x 1,000 PSI)
1
(in.)
2
UNC/UNF-2A
-S -SS -B
4 T22X
1/4
1/4-20
0.91 0.72 7.5
6 T22X
3/8
1/4-20
1.08 0.81 6.0
8 T22X
1/2
5/16-18
1.25 0.97 6.0