Quick Coupling Division
8145 Lewis Road • Minneapolis, MN 55427
www.parker.com/quickcouplings
B-58
Hydraulic Quick Couplings
B
Hydraulics
Dust Plugs and Dust Caps
Applications
Parker offers a selection of dust plugs and caps for their
hydraulic quick couplings. Most series shown in this section
have a dust plug and cap specifically designed to be used
with that style of coupling.
Dust plugs and caps serve a twofold function. They keep the
mating surface clean and free of contamination and protect
the critical mating elements of the coupling halves when they
are disconnected. In this way the nipple is protected from
damage that would make the total coupling unusable.
Protective dust plugs and caps play a crucial role in the use of
quick couplings and no purchase of a hydraulic quick coupling
is complete without the selection of an appropriate dust plug
and cap. When ordering the dust cap/plug body size must
correspond to that of the coupler or nipple.
Parker’s full line of dust plugs and caps can be found below
and on the following pages.
Dust Plug:
Used on Coupler (female half)
Dust Cap:
Used on Nipple (male half)
Dust Plugs
60 Series
SM Series
6600 Series
Body
Dust Plug Dust Plug Dust Cap Dust Cap
Size
Part No.
Part No.
Part No.
Part No.
(in.)
Aluminum Rubber
Aluminum Rubber
1/8
H1-65
H1-65M H1-66 H1-66M
1/4
H2-65
H2-65M H2-66 H2-66M
3/8
H3-65
H3-65M H3-66 H3-66M
1/2
H4-65
H4-65M H4-66 H4-66M
3/4
H6-65
H6-65M H6-66 H6-66M
1
H8-65
H8-65M H8-66 H8-66M
1 1/2
H12-65
NA
H12-66
NA
2 1/2 H20P-65
NA H20P-66 NA
NA = Not Available
Body Size
Dust Plug
Dust Cap
(in.)
Part No.
Part No.
Material
1/4
PL-25
N/A
Plastic
1/4
PR-25
CR-25
Rubber
1/4
P-25
C-25
Aluminum
1/2
DP-50
DC-50
Rubber
1/2
P-50
C-50
Aluminum
3/4
P-75
C-75
Aluminum
Body
Dust Plug
Dust Cap
Size
Part No.
Part No.
(in.)
Rubber
Rubber
1/4
H1-65M
H1-66M
3/8
TR-37
TR-37
1/2
5205-4M
5209-4M
3/4
6659-12M
6657-12M
1
6659-16M
6657-16M