Parker Hannifin Corporation
Fluid System Connectors
Otsego, Michigan
A5
Catalog 3501E
Prestolok Metal Fittings
D
L
O.D.
D
L
O.D.
Tube1
Tube2
62
PLP Union
Part
No.
tube
size
o.d.
L
flow
dia. D
62
PLP-2
1/8
.375
1.40
.094
62
PLP-3
3/16
.437
1.41
.156
62
PLP-5/32
5/32
.375
1.41
.125
62
PLP-4
1/4
.500
1.43
.188
62
PLP-5
5/16
.562
1.65
.250
62
PLP-6
3/8
.625
1.66
.312
62
PLP-8
1/2
.750
1.82
.375
62
PLP Unequal Union
Part
no.
TUBE 1
Size (IN)
TUBE 2
Size (IN)
O.D.
L
Flow
Dia. D
62
PLP-5/32-2
5/32
1/8
.375
1.41
.094
62
PLP-4-2
1/4
1/8
.500
1.43
.094
62
PLP-4-5/32
1/4
5/32
.500
1.43
.125
62
PLP-4-6
1/4
3/8
.625
1.66
.188
62
PLP-6-8
3/8
1/2
.750
1.82
.312
D
L
P
C HEX
62
PLPBH Bulkhead Union
Part
No.
tube
size (IN)
bulkhead
hole dia. b
C
Hex
p
max.
l
D
62
PLPBH-2
1/8
7/16
9/16
.39
1.40 .094
62
PLPBH-5/32
5/32
7/16
9/16
.39
1.41 .125
62
PLPBH-4
1/4
9/16
11/16
.29
1.43 .188
62
PLPBH-5
5/16
5/8
3/4
.60
1.65 .250
62
PLPBH-6
3/8
3/4
7/8
.54
1.66 .312
62
PLPBH-8
1/2
7/8
1
.66
2.04 .375
66
PLPBH Female Bulkhead
PART
NO.
TUBE
SIZE (IN)
PIPE thd
(
NPTF)
C
HEX
P
MAX.
L FLOW
DIA. D
bkhd
hole dia.
66
PLPBH-5/32-4 5/32
1/4
11/16
.19 1.39 .125
1/2
66
PLPBH-4-4
1/4
1/4
11/16
.24 1.35
.188
9/16
66
PLPBH-6-6
3/8
3/8
1
.22
1.47 .312
7/8
66
PLPBH-8-6
1/2
3/8
1 .35
1.56 .344
7/8
D
L
P
C HEX
HPB Equal Union
Part
No.
tube
SIZE (mm)
L
HPB4
4
33.0
HPB5
5
34.5
HPB6
6
36.0
HPB8
8
38.0
HPB10
10
48.0
HPB12
12
48.0
HPB14
14
54.0
L
WPB Bulkhead Union
Part
No.
tube
SIZE (MM)
B-mm
thread
C
HEX
L
W bulkhead
hole dia.
WPB4
4
M11x0.75
16
33
6
11
mm
WPB6
6
M13x1
19
35
6
13
mm
WPB8
8
M15x1.25
22
36
6
16
mm
WPB10
10
M18x1
22
43
8
18
mm
WPB12
12
M23x1.5
27
46
10
23
mm
WPB14
14
M24x1.5
30
52
10
24
mm
Jam nut is supplied loose in box
WBMPB Mixed
Bulkhead Union
Part
No.
TUBE 1
SIZE (MM)
TUBE 2
SIZE (MM)
b-MM
THREAD C1 C2 C4 L W bulkhead
hole dia.
WBMPB4
4
4
M8x1 10 10 12 34 5 8mm
WBMPB6
6
6
M10x1 12 10 12 37 5 10mm
WBMPB8
8
8
M12x1 14 14 16 39 5 12mm
WBMPB10
10
10
M14x1 17 17 19 45 5 14mm
WBMPB12
12
12
M16x1 22 19 22 49 5 16mm
L
W
C 1
C 4
C 2
B
L
WB
C
WG4PB Bulkhead
Union Female BSPP
Part
number
TUBE
SIZE (MM)
BSPP C1
HEX
C2
HEX
J
L
W
WG4PB4-1/8
4
1/8
14
14
8
25.0
6
WG4PB6-1/8
6
1/8
17
17
8
25.0
6
WG4PB6-1/4
6
1/4
17
19
12
29.5
6
WG4PB8-1/4
8
1/4
19
19
12
30.0
6
WG4PB10-3/8
10
3/8
22
22
12
34.0
8
WG4PB12-3/8
12
3/8
27
24
12
35.0
10
WG4PB12-1/2
12
1/2
27
27
14
40.0
10
66
LFBH-16M-6G 16
3/8
29
29
12
45
10.5
66
LFBH-16M-8G 16
1/2
28
29
15
49.5 10.5
C2
HEX
W C1
HEX
B2
L
J