MIL-DTL-3786/9E
Temperature-life characteristics: Symbol B (25,000 cycles, -65°C and +85°C).
Vibration grade: Symbol 1 (10 to 55 Hz).
Shock type: Symbol H (high impact), Symbol M (medium impact).
Insulation material: Symbol P.
Altitude: Symbol C (70,000 feet).
Shock type: See table IV.
Part number: The military part number shall consist of M3786/9- (selected from tables IV through VI)
as shown in the follow example (see note):
M3786/9-
A
02
01
Construction type, temperature life
characteristics, shock type and
insulation material (see table IV)
Poles per deck, number of positions and
original angle of throw (see table IV)
Number of decks and switching
characteristics (see table VI)
NOTE: Part numbers listed are for style SR09-1 switches. M3786/9-A0201 identifies a rotary switch of
construction type N, temperature-life characteristic B, shock type H, and plastic insulation material; one
pole per deck, two positions per pole, 15° angle of throw; one deck with nonshorting switching
characteristic.
TABLE IV. Code letters for combinations of construction type, temperature-life
characteristic, shock type, and insulation material.
Temperature-life
Insulation
Code letter
Construction type
characteristics
Shock type
material
A
N
B
H
P
B
S
"
H
"
C
N
"
M
"
D
S
"
M
"
6
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