MIL-DTL-3786/32C
TABLE II.
Code letters for combinations of construction type, number of
decks, and switching characteristics.
Switching characteristics
Code
Construction Number
character
type
of decks
First
Second
Third
Fourth
Fifth
deck
deck
deck
deck
deck
A
N
1
NS
B
N
1
S
C
N
2
NS
NS
D
N
2
S
S
E
N
2
NS
S
F
N
3
NS
NS
NS
G
N
3
S
S
S
H
N
3
NS
NS
S
J
N
3
NS
S
S
K
N
4
NS
NS
NS
NS
L
N
4
S
S
S
S
M
N
4
NS
NS
NS
S
N
N
4
NS
S
S
S
P
N
5
NS
NS
NS
NS
NS
Q
N
5
S
S
S
S
S
R
N
5
NS
NS
NS
NS
S
S
N
5
NS
S
S
S
S
T
S
1
NS
U
S
1
S
V
S
2
NS
NS
W
S
2
S
S
X
S
2
NS
S
Y
S
3
NS
NS
NS
Z
S
3
S
S
S
1
S
3
NS
NS
S
2
S
3
NS
S
S
3
S
4
NS
NS
NS
NS
4
S
4
S
S
S
S
5
S
4
NS
NS
NS
S
6
S
4
NS
S
S
S
7
S
5
NS
NS
NS
NS
NS
8
S
5
S
S
S
S
S
9
S
5
NS
NS
NS
NS
S
0
S
5
NS
S
S
S
S
8
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