MILDTL28803C
3.5.6.5 Thermal shock. When displays are tested as specified in 4.6.6.5, there shall be no mechanical or electrical
damage or loosening of fastening devices. There shall be no discoloration or deformation of the lens.
3.5.6.6 Vibration. When displays are tested as specified in 4.6.6.6, there shall be no chipping or cracking of
materials, or loosening, bending, warping or distortion of parts.
3.6 Marking.
3.6.1 Product identification. Displays shall be marked in accordance with MILSTD1285 with the following
information:
PIN (see 6.4) or type with manufacturer's part number as applicable.
a.
b.
Display manufacturer's name, trademark or code symbol, and date code.
c.
When 3.6.1.a is not applicable, the manufacturer's part number, the Government drawing number, or prime
contractor's number shall be marked on the unit package.
3.6.2 Terminal identification (see 3.1 and 6.2). Terminals shall be marked to indicate the contact arrangement of
the display. When specified (see 3.1 and 6.2) terminal markings shall be augmented by a circuit schematic. There
shall be no over-marking of the terminal identification.
3.7 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally
preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the
operational and maintenance requirements, and promotes economically advantageous life cycle costs.
3.8 Workmanship. Displays shall be processed in such a manner as to be uniform in quality and shall be free from
cracked or displaced parts, sharp edges, burrs, and other defects which will affect life, serviceability or appearance.
4. VERIFICATION
4.1 Classification of inspection. The inspection requirements specified herein are classified as follows:
a.
Qualification inspection (see 4.4).
b.
Conformance inspection (see 4.5).
4.2 Test equipment and inspection facilities. Test and measuring equipment and inspection facilities of sufficient
accuracy, quality, and quantity to permit performance of the required inspections shall be established and maintained
by the contractor. The establishment and maintenance of a calibration system to control the accuracy of the
measuring and test equipment (i.e., industry standard, Department of Defense standard) shall be required.
4.3 Inspection conditions. Unless otherwise specified herein, all inspections shall be performed in accordance with
the test conditions specified in the "GENERAL REQUIREMENTS" of MILSTD202.
4.4 Qualification inspection. Qualification inspection shall be performed at a laboratory acceptable to the
Government (see 6.3), on sample units produced with equipment and procedures normally used in production.
4.4.1 Sample size. The specified number of displays for which qualification is sought shall be submitted for
qualification inspection. The sample submitted shall consist of displays as specified in the applicable specification
sheet, and in the quantity specified (see 3.1).
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