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Parker Hannifin Corporation
Pneumatic Division
Richland, Michigan
www.parker.com/pneumatics
M21
M
“N” Series Valves
Internal Return - 3/8", 3/4", 1-1/4" Basic Body
Catalog 0600P-10/USA
Dimensions - Remote Operated
Key
3/8" Body 3/4" Body 1-1/4" Body
Inch mm Inch mm Inch
mm
H
3.19
81
3.75
95
5.34
136
J
1.88
48
2.44
62
3.44
87
K
.50
13
.50
13
.50
13
L
.11
3
.16
4
.25
6
M
1.44
37
1.78
45
2.66
67
N
4.22
107
5.31
135
7.19
183
P
4.78
121
5.56
141
7.53
191
Q
2.31
59
3.09
78
4.56
116
Key
3/8" Valve
3/4" Valve
1-1/4" Valve
Description
5
K493 002
K493 009
K493 016
Stem
6
K202 001
K202 002
K313 028
Lower Piston
Assy.
7*
H145 09
H136 76
H137 28
Seal
8
H178 11
H178 13
H178 17
Washer (2)
9
H063 26
H063 32
H063 38
Stop Nut (2)
10
K092 020
K092 034
K103 061
Bottom Cap
(N.C.)
10A
K103 035
K103 053
K092 046
Bottom Cap
(N.O.)
11*
K183 049
K183 057
K183 058
Gasket
12
K473 014
K473 015
K473 016
Spring
14*
K41RB72121 K41RB72221 K41RB72143
O-Ring
21
K123 018
K123 021
K123 024
Cover
* Parts included in seal kit
Key
3/8" Valve 3/4" Valve
1-1/4" Valve
Description
1
—
1/2" Tap
K053 075
1" Tap
K053 111
Body (N.O.)
3/8" Tap
K053 022
3/4" Tap
K053 076
1-1/4" Tap
K053 112
1/2" Tap
K053 023
1" Tap
K053 220
1-1/2" Tap
K053 113
1A
—
1/2" Tap
K053 077
1" Tap
K053 114
Body (N.C.)
3/8" Tap
K053 025
3/4" Tap
K053 078
1-1/4" Tap
K053 115
1/2" Tap
K053 026
1" Tap
K053 218
1-1/2" Tap
K053 116
2
K212 001
K212 002
K313 029
Upper Piston Assy
3*
H136 48
H137 28
H137 52
Seal
4*
H145 10
H136 76
H137 28
Seal
EXH
N
P
M
J
H
K Travel
L
H100-59
H175-12
H100-59
H175-12
1/4 NPT
1/4 NPT
G
A
F
B
E
C
D
On 2-Way Valve This
Port Is Plugged
11*
2
1
6
8
9
12
12
21
3*
4*
5
7*
14
10A
11*
2
6
8
9
21
3*
4*
5
1A
7*
10
EXH
CYL.
IN
CYL.
IN
P
L
N
Q
J
H
K Travel
G
A
F
B
E
C
D
On 2-Way Valve This
Port Is Plugged
Service Kits
Include all parts normally required for
in-service maintenance:
3/8" Basic Valve .......................K352 073
3/4" Basic Valve .......................K352 074
1-1/4" Basic Valve ....................K352 075
Normally Closed
Normally Open
Top view indicates flow through 3-Way
valve.
NOTE: For normal valve operation, override
must be in “out” position.
Exhaust
Pressure
Dimensions