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|  MIL-R-23016(Wep)
Cases and mounting bases:
3.2.3
Materials, bonding, shielding, and performance requirements
of Specification MIL-C-172 shall apply to all cases and
mounting bases, except that performance shall be met for the
frequencies and amplitude shown in the specific curve of
figure 31 for the applicable equipment. Mounts and vibration
isolators shall be subject to the approval of the procuring
activity.
Accessibility:
3.2.4
Each article of equipment and each major subassembly, form-
ing a part thereof, shall provide easy and ready access to
its interior parts, terminals, and wiring for adjustments,
complete circuit checking, and the removal and replacement
of component parts. As a general rule, it will not be
acceptable to displace or remove wires, cables, parts, or
assemblies in order to gain access to terminals, soldered
connections, mounting screws, and the like. When it is not
practicable to avoid such construction, those parts which
must be displaced or removed shall be so designed, mounted,
and otherwise arranged to facilitate their displacement or
removal when necessary. If, in order to check or remove
a given part, it is necessary to displace some other part,
the latter part shall, whenever practicable, be so wired and
mounted that it can be sufficiently moved without being
disconnected from its circuit.
Connections to Parts:
3.2.4.1
Connections to parts inside a removable container shall be
arranged to permit the removal of the container without
threading connection leads through the sides or top of the
container.
Parts which are identified as replaceable by spare parts for
3.2.4.2
the equipment shall be easily removable.
Cooling:
3.2.5
Adequate means shall be employed to maintain parts within
their maximum permissible operating temperature under all
operating conditions. Air vents shall not be provided if
adequate cooling can be obtained without such vents. If
vents are necessary, internal parts, such as air-dielectric
capacitors and relays, which might be affected by dust and
insects shall be protected. Forced cooling shall not be
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