MIL-C-81861(AS)
3.3
Design and Constuction. The equipment shall conform with all the
applicable requirements of MIL-E-5400 for design, construction and workmanship,
except as otherwise specified herein.
3.3.1
Total Weight. The total weight of the equipment, excluding cables,
shall be a minimum consistent with good design and shall not exceed 4 pounds.
3.3.2
Reliability. The contractor shall conduct a reliability program using
MIL-STD-785 as a guide. On a reorder from a supplier who has previously produced
the equipment, the program previously used may be continued unless otherwise indicated.
in the contract or order.
3.3.2.1
Operational Stability. The equipment shall operate with satisfactory
performance, continuously or intermittently for a period of at least 3500 hours
without the necessity for readjustment of any controls which are inaccessible to the
operator during normal use.
Operating Life. The equipment shall have a total operating life of
3.3.2.2
6000 hours with reasonable servicing and replacement of parts. Parts requiring
scheduled replacement shall be specified by the contractor.
3.3.2.3
Reliability in Mean Time Between Failure (MTBF). The equipment,
including any built-in-test provisions, shall have 3500 hours of mean (operating]
time between failures when tested and accepted as outlined under the requirements of
4.4.3.
Cabling and Connections.
3.3.3
Cables and Connectors. The equipment shall provide for the use of
3.3.3.1
cables and connectors in accordance with MIL-E-5400.
3.3.3.2. Interconnection Cabling. The equipment shall be capable of
satisfactory operation using external wiring in accordance with the applicable
requirements of MIL-W-5088. The external wiring shall be unshielded, except that a
minimum number of the 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. External cables and that portion of
the connectors attached to the cables shall not be supplied as part of the equipment.
3.3.4
Control Panels. All rack or console mounted control panels shall
conform to the applicable requirements of MIL-C-6781. The configuration of all
panels must be approved by the procuring activity prior to preproduction testing.
3.3.5
Interchangeability. The equipment shall meet the interchangeability
requirements of MIL-E-5400.
Interference Control. The generation Of radio interference by the
3.3.6.
equipment and the vulnerability of the equipment to radio interference shall meet
the requirements of MIL-STD-461.
Provisions for Maintainability. The Maintainability Program, built-
3.3.7
in-test features, construction and packaging, provisions for test points, and other
maintainability parameters shall be as specified in AR-10.
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