Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
C13
4300
Catalog
Ferulok
®
Flareless Bite Type Fittings
Dimensions and pressures for reference only, subject to change.
SBU
Male Branch Tee
Flareless / NPTF
SAE 080425
R5BU
Straight Thread Run Tee
Flareless / SAE-ORB
SAE 080428
*
Y – Across wrench flats
*
Y – Across wrench flats
RBU
Male Run Tee
Flareless / NPTF
SAE 080424
OBU
Female Branch Tee
Flareless / NPTF
SAE 080427
*
Y – Across wrench flats
*
Y1 – Across wrench flats
TUBE
FITTING
PART #
END SIZE
M
(
in.)
M7
(
in.)
Y
(
in.)
Dynamic
Pressure
(
x 1,000 PSI)
1
(
in.)
2
UN/UNF-2A
3
(
in.)
-
S -SS
4
R5BU
1/4 7/16 - 20 1/4 0.89 1.03 7/16 5.0 5.0
6
R5BU
3/8 9/16 - 18 3/8 1.05 1.25 9/16 5.0 5.0
8
R5BU
1/2 3/4 - 16 1/2 1.25 1.45 3/4 5.0 5.0
10
R5BU
5/8 7/8 - 14 5/8 1.42 1.70 7/8 4.5 4.5
12
R5BU
3/4 1 1/16 - 12 3/4 1.58 1.94 1 1/16 4.0 4.0
16
R5BU
1 1 5/16 - 12 1 1.73 2.05 1 5/16 3.0 3.0
TUBE
FITTING
PART #
END SIZE
M
(
in.)
N
(
in.)
Y
(
in.)
Dynamic
Pressure
(
x 1,000 PSI)
1
(
in.)
2
(
in.)
3
NPTF
-
S -SS
2
SBU
1/8 1/8 1/8 - 27 0.77 0.72 7/16 5.0 5.0
4
SBU
1/4 1/4 1/8 - 27 0.89 0.78 7/16 5.0 5.0
4-4-4
SBU
1/4 1/4 1/4 - 18 1.03 1.09 9/16 5.0 5.0
5
SBU
5/16 5/16 1/8 - 27 0.95 0.81 9/16 5.0 5.0
6
SBU
3/8 3/8 1/4 - 18 1.05 1.09 9/16 5.0 5.0
8
SBU
1/2 1/2 3/8 - 18 1.25 1.22 3/4 5.0 5.0
8-8-8
SBU
1/2 1/2 1/2 - 14 1.35 1.47 7/8 5.0 5.0
10
SBU
5/8 5/8 1/2 - 14 1.42 1.47 7/8 4.5 4.5
12
SBU
3/4 3/4 3/4 - 14 1.58 1.59 1 1/16 4.0 4.0
14
SBU
7/8 7/8 3/4 - 14 1.66 1.69 1 5/16 3.0 3.0
16
SBU
1 1 1 - 11 1/2 1.73 1.97 1 5/16 3.0 3.0
TUBE
FITTING
PART #
END SIZE
M
(
in.)
N
(
in.)
Y
(
in.)
Dynamic
Pressure
(
x 1,000 PSI)
1
(
in.)
2
NPTF
3
(
in.)
-
S -SS
4
RBU
1/4 1/8 - 27 1/4 0.89 0.78 7/16 5.0 5.0
4-4-4
RBU
1/4 1/4 - 18 1/4 1.03 1.09 9/16 5.0 5.0
5
RBU
5/16 1/8 - 27 5/16 0.95 0.81 9/16 5.0 5.0
6
RBU
3/8 1/4 - 18 3/8 1.05 1.09 9/16 5.0 5.0
8
RBU
1/2 3/8 - 18 1/2 1.25 1.22 3/4 5.0 5.0
8-8-8
RBU
1/2 1/2 - 14 1/2 1.35 1.47 7/8 5.0 5.0
10
RBU
5/8 1/2 - 14 5/8 1.42 1.47 7/8 4.5 4.5
12
RBU
3/4 3/4 - 14 3/4 1.58 1.59 1 1/16 4.0 4.0
14
RBU
7/8 3/4 - 14 7/8 1.66 1.69 1 5/16 3.0 3.0
16
RBU
1 1 - 11 1/2 1 1.73 1.97 1 5/16 3.0 3.0
TUBE
FITTING
PART #
END SIZE
M1
(
in.)
N1
(
in.)
Y1
(
in.)
Dynamic
Pressure
(
x 1,000 PSI)
1
(
in.)
2
(
in.)
3
NPTF
-
S -SS
4
OBU
1/4 1/4 1/8 - 27 0.89 0.66 9/16 5.0 5.0
4-4-4
OBU
1/4 1/4 1/4 - 18 1.03 0.88 3/4 5.0 5.0
6
OBU
3/8 3/8 1/4 - 18 1.05 0.88 3/4 5.0 5.0
8
OBU
1/2 1/2 3/8 - 18 1.23 1.02 7/8 3.0 3.0
10
OBU
5/8 5/8 1/2 - 14 1.42 1.23 1 1/16 3.0 3.0
12
OBU
3/4 3/4 3/4 - 14 1.58 1.36 1 5/16 3.0 3.0
14
OBU
7/8 7/8 3/4 - 14 1.62 1.42 1 5/16 3.0 3.0
16
OBU
1 1 1 - 11 1/2 1.73 1.63 1 5/8 1.7 1.7
20
OBU
1 1/4 1 1/4 1 1/4 - 11 1/2 2.08 1.70 1 7/8 1.5 1.5