 |
|||
|
Page Title:
Reliability in Mean-Time-Between-Failures (MTBF) |
|
||
| ||||||||||
|
|  MIL-N-85005A(AS)
(11) 5.7.2.5
Non-axial lead components may be mounted
in contact with the printed wiring board,
provided manufacturing processes insure
the elimination of any foreign particles
or fluids between the board and component.
(12) 5.8.2
Conformal coating applied in accordance with
processes meeting procuring activity approval.
*
3.3.1
Total Weight - The total weight of the equipment excluding
cables and mounting, shall be a minimum consistent with good design and
shall not exceed 258 pounds in all possible configurations.
3.3.2
Reliability - The contractor shall conduct a reliability program
using MIL-STD-785 as a guide. On a re-order from a supplier who has produced
the equipment, the program previously used may be continued unless
otherwise indicated in the contract or order.
Operational Stability - The equipment shall operate with
3.3.2.1
satisfactory performance, continuously or intermittently for a period of
at least 1000 hours without the necessity for readjustment of any controls
which are inaccessible to the operator during normal use.
3.3.2.2
Operating Life - The equipment shall have total operating
life of 10,000 hours with reasonable servicing and replacement of parts.
Parts requiring scheduled replacement intervals shall be specified by
the contractor.
3.3.2.3
Reliability in Mean-Time-Between-Failures (MTBF) - The
equipment shall have 100 hours mean (operating) time between failures
when tested and accepted as outlined under the requirements of 4.4.3.
3.3.2.4
Time Totalizing Meter - The following units shall each
contain a time totalizing meter in accordance with MS17322 or MS327651.
Unit
Computer, Navigation
Battery Unit
Converter, Signal Data
Converter-Interface
Control, Tactical Display
Control, Keyer
Indicator, Digital Display
3.3.3
Interconnection Cabling - The equipment shall be capable of
satisfactory operation using external wiring in accordance with the appli-
cable requirements of MIL-W-5088. The external wiring shall be unshielded,
except that a minimum number of individual wires may be shielded when
demonstrated as necessary to meet interference control requirements and
provided the assembly of the cable to its plugs may be easily accomplished.
-9-
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals