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MIL-A-81371(AS)
3.3.3
Interchangeability of Reordered Equipment- For reordered equipment
interchangeability shall exist between units and all replaceable assemblies, subassemblies,
and parts of a designated model of any previously manufactured equipment supplied or
designated by the procuring activity.
3.3.4
Interference Control - The generation of radio interference by the
equipment and vulnerability of the equipment to radio interference shall be controlled
within the limits of Specification MIL-I-6181.
3.3.5
Maintenance Provisions and Field Testing - Provisions for maintenance
shall be as specified in Specification MIL-E-5400. Specific test points and test facilities
shall be provided to the greatest extent practicable for ease of field testing and maintenance.
3.3.6
Nomenclature and Nameplates - Nomenclature assignment and name-
plate approval for equipment identification shall be in accordance with Specification
MIL-N-18307.
Standard Conditions - The following conditions shall be used to establish
3.3.7
normal performance characteristics under standard conditions and for making laboratory
bench tests.
0
Room ambient (25 + 5 C)
Temperature
Normal ground
Altitude
None
Vibration
Room ambient up to 90%
Humidity
relative humidity
115 + l. Ovac and/or 27.5
Input power
+ 0. 5vdc
voltage
Service Conditions - The equipment shall operate satisfactorily under
3.3.8
any of the environmental service conditions or reasonable combination of these conditions
as specified in Specification MIL-E-5400 for class II equipment, except as modified herein:
3.3.8.1
Vibration - The equipment shall operate satisfactorily when subjected to
the vibration requirements of curve I of Specification MIL-E-5400.
3.3.8.2
Altitude - The unit shall operate satisfactorily when subjected to the
altitude requirements of Specification MIL-E-5400 with the exception that the operational
altitude be limited to 50,000 feet.
3.3.9
Warm-Up Time - The equipment shall require no warm-up time.

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