Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
C14
4300
Catalog
Ferulok
®
Flareless Bite Type Fittings
Dimensions and pressures for reference only, subject to change.
PNU
Plug
Flareless
SAE 080109
FNU
Cap
Flareless Swivel
SAE 080112
*
LL – Fitting end to
rear of plug
MBU
Female Run Tee
Flareless / NPTF
SAE 080426
KBU
Union Cross
Flareless (all four ends)
SAE 080501
*
Y1 – Across wrench flats
*
Y – Across wrench flats
TUBE
FITTING
PART #
TUBE
O.D.
(
in.)
T
TUBE END
UN/UNF-2A
C
HEX
(
in.)
K
(
in.)
L3
(
in.)
Dynamic
Pressure
(
x 1,000 PSI)
-
S -SS
2
PNU
1/8 5/16 - 24 7/16 0.19 0.63 6.0 6.0
4
PNU
1/4 7/16 - 20 1/2 0.24 0.72 6.0 6.0
5
PNU
5/16 1/2 - 20 9/16 0.26 0.72 6.0 6.0
6
PNU
3/8 9/16 - 18 5/8 0.26 0.75 6.0 6.0
8
PNU
1/2
3/4 - 16 13/16 0.31 0.84 5.0 5.0
10
PNU
5/8
7/8 - 14 15/16 0.36 0.97 5.0 5.0
12
PNU
3/4 1 1/16 - 12 1 1/8 0.36 1.09 4.5 4.5
16
PNU
1 1 5/16 - 12 1 3/8 0.42 1.09 4.0 4.0
TUBE
FITTING
PART #
TUBE
O.D.
(
in.)
T6
UN/UNF-2B
C
HEX
(
in.)
LL
(
in.)
Z
(
in.)
2
FNU
1/8
5/16 - 24 3/8 0.34 0.55
4
FNU
1/4
7/16 - 20 9/16 0.36 0.73
5
FNU
5/16
1/2 - 20
5/8 0.40 0.77
6
FNU
3/8
9/16 - 18 11/16 0.42 0.80
8
FNU
1/2
3/4 - 16
7/8 0.44 0.87
10
FNU
5/8
7/8 - 14
1 0.47 0.98
12
FNU
3/4
1 1/16 - 12 1 1/4 0.48 1.00
16
FNU
1
1 5/16 - 12 1 1/2 0.58 1.08
20
FNU
1 1/4
1 5/8 - 12
2 0.64 1.11
TUBE
FITTING
PART #
END SIZE
M1
(
in.)
N1
(
in.)
Y1
(
in.)
Dynamic
Pressure
(
x 1,000 PSI)
1
(
in.)
2
NPTF
3
(
in.)
-
S -SS
4
MBU
1/4 1/8 - 27 1/4 0.89 0.66 9/16 5.0 5.0
6
MBU
3/8 1/4 - 18 3/8 1.05 0.88 3/4 5.0 5.0
8
MBU
1/2 3/8 - 18 1/2 1.23 1.02 7/8 3.0 3.0
10
MBU
5/8 1/2 - 14 5/8 1.42 1.23 1 1/16 3.0 3.0
12
MBU
3/4 3/4 - 14 3/4 1.58 1.36 1 5/16 3.0 3.0
16
MBU
1 1 - 11 1/2 1 1.73 1.62 1 5/8 1.7 1.7
TUBE
FITTING
PART #
END SIZE
M
(
in.)
Y
(
in.)
Dynamic
Pressure
(
x 1,000 PSI)
1-4
(
in.)
-
S -SS
4
KBU
1/4
0.89 7/16 5.0 5.0
6
KBU
3/8
1.05 9/16 5.0 5.0
8
KBU
1/2
1.25 3/4 5.0 5.0
12
KBU
3/4
1.58 1 1/16 4.0 4.0