Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
C6
4300
Catalog
Ferulok
®
Flareless Reference
Dimensions and pressures for reference only, subject to change.
Thread
Tube
Nut
Hex
Bulhkead
Locknut
Hex
Swivel
Nut
Hex
Max
Drill
Allowance
Male
Turn
Back
Bulkhead
Max Bulkhead
Thickness
Thread
Engage-
ment
Across Corners
Tube Nut
Assembled Tube
Pilot
Length
Shapes
Length -
Straights
Length -
Shapes
Locknut
Thickness
Pilot
Dia Straights Shapes
Tube
Nut
Hex
Swivel
Nut
Hex
SAE
Dash
Size
Tube
O.D.
(
in.)
T
UN/UNF
C
(
in.)
C2
(
in.)
C3
(
in.)
D
(
in)
F
(
in)
K
(
in)
L
(
in)
K2
(
in)
L1
(
in)
L2
(
in)
R
(
in)
W
1)
(
in)
M1
(
in)
M2
(
in)
TE
(
in
U1
(
in)
U2
(
in)
2
1/8 5/16-24 3/8 9/16 7/16 0.093 0.31 0.19 0.375 0.09 1.02 0.83
0.22
0.31 0.28
0.38 0.22
0.22 0.25
3
3/16 3/8-24 7/16 5/8 1/2 0.125 0.34 0.24 0.422 0.09 1.06 0.88
0.22
0.37 0.28
0.38 0.25
0.25 0.29
4
1/4 7/16-20 9/16 11/16 9/16 0.203 0.42 0.24 0.453 0.09 1.12 0.94
0.28
0.44 0.38
0.28 0.29
0.33 0.33
5
5/16 1/2-20 5/8 3/4 5/8 0.234 0.42 0.26 0.453 0.09 1.12 0.94
0.28
0.50 0.28
0.38 0.31
0.36 0.36
6
3/8 9/16-18 11/16 13/16 11/16 0.281 0.47 0.26 0.469 0.09 1.17 0.98
0.27
0.56 0.40
0.31 0.34
0.40 0.40
8
1/2
3/4-16 7/8 1 7/8 0.422 0.50 0.31 0.562 0.13 1.31 1.12
0.31
0.75 0.40
0.31 0.32
0.51 0.51
10
5/8
7/8-14 1 1 1/8 1 0.500 0.53 0.36 0.625 0.13 1.45 1.27
0.36
0.88 0.44
0.38 0.37
0.58 0.59
12
3/4 1 1/16-12 1 1/4 1 3/8 1 1/4 0.656 0.56 0.36 0.688 0.13 1.56 1.38
0.41
1.06 0.44
0.38 0.42
0.72 0.73
14
7/8 1 3/16-12 1 3/8 1 1/2 1 3/8 0.719 0.53 0.36 0.688 0.13 1.56 1.38
0.41
1.19 0.44
0.38 0.34
0.79 0.79
16
1 1 5/16-12 1 1/2 1 5/8 1 1/2 0.875 0.66 0.42 0.688 0.13 1.56 1.38
0.41
1.31 0.44
0.38 0.32
0.87 0.88
20
1 1/4 1 5/8-12 2 1 7/8 2 1.094 0.72 0.42 0.688 0.13 1.56 1.38
0.41
1.62 0.44
0.38 0.33
1.15 1.17
24
1 1/2 1 7/8-12 2 1/4 2 1/8 2 1/4 1.344 0.72 0.49 0.688 0.13 1.56 1.38
0.41
1.87 0.44
0.38 0.34
1.30 1.29
32
2 2 1/2-12 2 7/8 2 3/4 2 7/8 1.813 0.84 0.49 0.688 0.13 1.77 1.58
0.41
2.50 0.63
0.56 0.34
1.66 1.64
1)
Recommended clearance hole +0.015 over W dia.
Note: For port and stud end dimensions reference
Section F: Pipe Fittings and Port Adapters.
Ferulok Flareless Tube Ends
Ferulok Tube End
Assembly
Ferulok Male
Stud Tube End
Ferulok Female Swivel End
Ferulok Straight
Bulkhead
Ferulok Shape
Bulkhead