 |
|||
|
|
|||
| ||||||||||
|
|  MIL-N-85005A(AS)
6.4
Performance Objectives - Minimum size and weight, sim-
plicity of operation, ease of maintenance, and an improvement in the
performance and reliability of the specific functions beyond the require-
ments of this specification are objectives which shall be considered in
the production of this equipment. Where it appears a substantial
reduction in size and weight or improvement in simplicity of design,
performance, ease of maintenance or reliability will result from the
use of materials, parts and processes other than those specified in
Specification MIL-E-5400, it is desired their use be investigated.
When investigation shows advantages can be realized, a request for
approval shall be submitted to the procuring activity for considera-
tion. Each request shall be accompanied by complete supporting infor-
mation.
Non-Repairable Subassemblies - As a general rule, non-
6.5
repairable subassemblies should be encapsulated or hermetically sealed.
The number of connections internal to the subassembly should be held to
a minimum. Detail parts tolerances and ratings should be so selected
that the life of the subassembly is greater than that of a similar
repairable one. With few exceptions (such as high voltage power supplies),
the non-repairable subassembly should evidence a Mean-Time-to-Failure
greater than 5000 hours, and for many applications this figure must be
nearer 50,000 hours. The requirements of Paragraph 3.2 shall apply to
the non-repairable assembly and not the discrete parts contained therein.
Type Designations - The parentheses () when used in the
6.6
equipment type designation, will be deleted or replaced by either a num-
ber or letter furnished by the procuring activity upon application by the
contractor for assignment of nomenclature in accordance with 3.3.8.
The complete type number shall be used on nameplates, shipping records
and instruction books, as applicable.
Revisions - In specification revisions and superseding
6.7
amendments an asterisk "*" preceding a paragraph number denotes para-
graphs in which changes have been made from the previous issue. This
has been done as a convenience only and the procuring activity assumes
no liability whatsoever for any inaccuracies in these notations. Users
are cautioned to evaluate the requirements of this document based on
the entire content as written, irrespective of the asterisk notations
and relationship to the last previous issue.
- 132 -
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals