MIL-PRF-62546C
3.5.3 Encapsulation. Encapsulation, if used, shall be of the kind that allows for removal
for repair.
3.5.4 Safety. The transmission shall not produce any hazards to personnel or the
environment resulting from the use of asbestos, cadmium, or other radioactive material.
3.5.5 Finish. All component exterior surfaces of the OFSA, except lens windows,
mounting surfaces, and electrical connector, shall be painted according to manufacturer s
standard practices.
3.5.6 Identification marking. Markings shall be permanent and legible and shall be on a
nameplate which shall be firmly attached to the OFSA in a conspicuous location. The nameplate
shall have the following minimum information:
Manufacturer s identification
a.
b.
Serial number
c.
Military part number
d.
Part or identifying number (PIN)
e.
Federal stock number
3.6 Operating environment requirements. The OFSA shall produce no false alarms
during or after exposure to the following environments. The OFSA shall function properly,
evidence no deterioration, and meet the requirements of 3.3.3.1 and 3.3.3.2.1 after exposure.
The OFSA shall also demonstrate the ability to detect fires and meet the requirements of
3.3.3.1.3 during exposure to the environments of 3.6.1.1 through 3.6.1.3, 3.6.2, and 3.6.8
(see 4.3.6).
3.6.1 Temperature.
3.6.1.1 High temperature. The OFSA shall meet the requirements of 3.6 during and after
extended exposure to a temperature of 125 degrees Celsius (°C) (257 degrees Fahrenheit (°F))
(4.3.6.1.1).
3.6.1.2 Low temperature. The OFSA shall meet the requirements of 3.6 during and after
extended exposure to a temperature of -51 °C (-60 °F) (see 4.3.6.1.2).
3.6.1.3 Temperature shock. The OFSA shall meet the requirements of 3.6 when exposed
to rapid changes of temperature between -51 and +71 °C (-60 and +160 °F) (see 4.3.6.1.3).
3.6.2 Vibration. The OFSA shall meet the requirements of 3.6 when exposed to severe
vibration (see 4.3.6.2).
3.6.3 Shock. The OFSA shall meet the requirements of 3.6 when subject to severe shock
(4.3.6.3).
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