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|  MIL-S-85018A(AS)
2.1.1 Availability of Documents - When requesting specifications,
standards, drawings, and publications, refer to both title and number. Copies
of this specification and applicable specifications required may be obtained
upon application to the Commanding Officer, Publications and Forms Center, Code
105, 5801 Tabor Avenue, Philadelphia, Pennsylvania 19120.
3. REQUIREMENTS
3.1 Preproduction - This specification makes provision for preproduction
testing.
3.2 Parts and Materials - In the selection of parts and materials fulfill-
ment of major design objectives shall be the prime consideration. In so doing,
the following shall govern:
(a) Microelectronic Technology shall be considered and microelectronic
items shall conform to requirements specified herein.
(b) All parts and materials requirements shall conform to
Specification MIL-E-5400, Revision L.
(c) Nonrepairable subassemblies shall be used in accordance with
Specification AR-10 and as outlined in Specification MIL-E-5400.
3.2.1 Nonstandard Parts and Materials Approval - Approval for the use of
nonstandard parts and materials not previously government approved (including
electron tubes, transistors, diodes, and microelectronic devices) shall be
obtained as outlined in Specification MIL-E-5400. Microelectronic devices shall
be approved as outlined in AR-5.
3.2.2 Microelectronic Modular Assemblies - Conformal coatings, encapsulents
embedments or potting materials used with modular assemblies containing inte-
grated circuits and discrete parts shall be easily removed without damage to the
assembly.
3.2.3 Modules - The electronic portions of the equipment shall be func-
tionally modularized in accordance with AR-10.
3.3 Design and Construction - The equipment shall conform with all appli-
cable requirements of Specification 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 be 29.5 pounds.
3.3.1.1 Form Factor - The total volume of Second Order Attitude Reference
System, excluding cables and mounts, shall not exceed 825 cubic inches. The
external surfaces except as specified herein shall be painted lusterless gray,
color number 36231, in accordance with FED-STD-595.
3.3.2 Reliability - The contractor shall conduct a reliability test program
in accordance with MIL-STD-785.
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