MIL-S-6451E
Humidity - 95 percent up to 38°C
b.
c.
Sand and dust particles as encountered in desert areas
d.
Fungus growth as encountered in tropical areas
Salt fog atmosphere
e.
f.
Sunshine as encountered in desert areas
Rain.
g.
3.6.2 Functional performance. The shield shall be capable of constant usage
without failure of any part while under normal conditions of handling and use.
All wearing parts shall be readily replaceable. The shield shall be capable
of remaining in place under all environmental conditions when the aircraft
is not in operation. It shall be designed to allow for the differential
expansion of shield and aircraft from a minimum temperature of -54°C to a
maximum temperature of +51.7°C. The shield shall have sufficient flexibility
to provide a good interference press fit throughout the above temperature
range.
3.6.3 Impact resistance. The shield shall be capable of free fall from a
height of 10 feet onto a concrete floor without damage.
3.7 Part numbering of interchangeable parts. All parts having the same manu-
facturer's part number shall be functionally and dimensionally interchangeable.
The item identification and part number requirements of MIL-STD-100 shall govern
the manufacturer's part number and changes thereto.
3.8 Finishes and protective coatings. Cleaning, painting, plating, anodic
films, and chemical treatments shall be in accordance with MIL-STD-808. The
final paint film shall be insignia red, film designation BG (plastic parts
may be pigmented prior to molding). Class 2 (nonmetallic) shields and felt
and fabric material shall not be painted.
3.9 Dimensions. The overall dimensions of the shield shall be held to assure
a press fit in the area being closed by the shield.
3.10 Weight.
The shield shall be of a minimum weight consistent with its
size.
9
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