MIL-DTL-9395/38C
QUALIFICATION:
Single submission: Restricted to switch submitted.
Group submission: See table V.
PART NUMBER: Consists of "M" prefix followed by specification sheet number; a dash (-); and a five-
letter code. The five-letter code identifies the configuration, electrical rating, and pressure setting mode
(code from table I); high-pressure setting (coarse value code from table II) followed by fine value with
applicable tolerance (code from table III); and low-pressure setting (coarse value code from table II)
followed by fine value with applicable tolerance (code from table III). The five-letter code used in the
following example identifies a switch of configuration 1, low level to 1 ampere resistive at 28 V dc,
which actuates on increasing pressure at 1.5 ±0.5 lbf/in2 and deactuates on decreasing pressure at 0.5
±0.5 lbf/in2.
EXAMPLE:
M9395/38-
A
AJ
AG
"M" PREFIX AND SPECIFICATION SHEET NUMBER
CONFIGURATION, ELECTRICAL, RATING, AND
PRESSURE SETTING MODE = Code "A" of table I
HIGH-PRESSURE SETTING = Code "A" of table II
(coarse value of 0 lbf/in2 and Code "J" of table III
(fine value of 1.5 ± 0.5 lbf/in2).
LOW-PRESSURE SETTING = Code "A" of table II
(coarse value of 0 lbf/in2 and code "G" of table II
(fine value of 0.5 ± 0.5 lbf/in2).
NOTE: Design limitations (actuation values and tolerances, deadband and actuation values and
tolerances) should be coordinated with the manufacturer(s) listed on the QPL for this spec sheet before
specifying a particular "M" number. The fact that operating characteristics can be coded does not
necessarily mean that it can be manufactured or procured.
TABLE I. Codes for combinations of configurations, electrical ratings, and pressure settings modes.
Low level to 1 A resistive at 28 Vdc
1.5 to 5 A resistice at 28 Vdc
Configuration
Configuration
1
2
1
2
Pressure setting mode
Electrical chamber Electrical chamber Electrical chamber Electrical chamber
High
Low
Hermetic Unsealed Hermetic Unsealed Hermetic Unsealed Hermetic Unsealed
setting
setting
Code
A
D
G
K
N
R
U
X
At (or max) 1/ At (or min) 1/
Code
B
E
H
L
P
S
V
Y
At (or max) 1/ Differential 2/
Code
C
F
J
M
Q
T
W
Z
Differential 2/ At (or min) 1/
1/ Setting values are designated by codes from table II and III.
2/ Setting values are designated by codes from table IV.
4
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