D5
Parker Hannifin Corporation
Fluid System Connectors
Otsego, Michigan
Catalog 3501E
Prestomatic
†
Air Brake Push-In Fittings
O.D.
L
O.D.
L
P
HEXA
HEXB
L
HEX
66
PMT
L
HEX
66-4-
X PMT
ASSEMBLY TOOL
EXTERNAL
RETAINER
SUPPORT
BULKHEAD
62
PMTBHR
EXTERNAL SEAL
(
OPTIONAL)
O.D.
A
DIA
L
P
MAX
A
DIA
I.D.
W
W
Prestomatic
†
Retaining Ring Bulkhead Unions
Prestomatic
†
retaining ring bulkhead unions feature a unique design
that provides the user with an economical method to install and
assemble a union connection through a bulkhead.
The retaining ring bulkhead unions feature a smaller envelope size
than standard bulkhead union connectors and do not require a wrench
to mount or assemble in cramped areas.
The external seal feature provides a moisture barrier and can also
prevent external contamination from entering into an enclosed area.
To install, simply support the bulkhead union from behind and
apply the external seal. Then push the external retainer against the
external seal with an assembly tool and you have a reliable bulkhead
connection in a confined area.
Retaining Ring Bulkhead
62
pmtbhr
Part No.
tube
size
O.D.
rec. hole
size
l
p
Max
a
dia
62
PMTBHR-4
1/4
.500
.512
1.53
.26
.625
62
PMTBHR-6
3/8
.750
.762
1.92
.36
.875
62
PMTBHR-8
1/2
.875
.887
2.15
.43
1.000
62
PMTBHR-10 5/8 1.000
1.012
2.54
.62
1.250
External Retainer ERHD*
PART No.
TUBE SIZE
BULKHEAD UNION O.D.
A DIA.
W
ERHD-50
1/4
.500
.83
.05
ERHD-75
3/8
.750
1.08
.05
ERHD-87
1/2
.875
1.20
.05
ERHD-100
5/8
1.000
1.33
.06
*
Material Carbon Spring Steel
External Seal ES*
PART no.
TUBE SIZE
BULKHEAD UNION O.D.
I.D.
W
ES-50
1/4
.500
.489
.07
ES-75
3/8
.750
.739
.07
ES-87
1/2
.875
.864
.07
*
Material is Nitrite (Buna N), 70 Durometer
Union 62PMT
Part No.
tube size
L
O.D.
62
PMT-4
1/4
1.48
.50
62
PMT-6
3/8
1.87
.75
62
PMT-6-4
3/8-1/4
1.68
.75
62
PMT-8
1/2
2.03
.88
62
PMT-10
5/8
2.42
1.00
Bulkhead Union
62
PMTBH
Part
No.
tube
size
O.D.
l
p
Max
hex
a
hex
b
bulkhead
hole dia.
62
PMTBH-4
1/4
.56
1.69
.25 11/16 3/4
9/16
62
PMTBH-6
3/8
.88
1.93
.44 1-1/16 1-1/16
7/8
62
PMTBH-8
1/2
1.00 2.02
.58 1-1/4 1-1/4
1
62
PMTBH-10 5/8
1.12 2.92
.81 1-1/4 1-3/8
1-1/8
Female Connector
66
PMT
Part No.
tube size
PIPE THREAD
L
HEX
66
PMT-4-2
1/4
1/8
1.22
9/16
66
PMT-4-4
1/4
1/4
1.43
11/16
66
PMT-6-2
3/8
1/8
1.37
3/4
66
PMT-6-4
3/8
1/4
1.58
3/4
66
PMT-6-6
3/8
3/8
1.62
13/16
66
PMT-8-4
1/2
1/4
1.69
7/8
66
PMT-8-6
1/2
3/8
1.68
7/8
66
PMT-8-8
1/2
1/2
1.91
1