MIL-DTL-5904E
3.5.1.2 Colored lights. Unless otherwise specified, the light emitted from all assemblies
shall comply with the requirements of SAE AS25050 for type I (aviation) colors. When filters
are installed, all the requirements for white lights shall apply except that the minimum cp values
shall be multiplied by the transmission ratios specified in table I (see 6.2).
TABLE I. Minimum cp multiplier.
Color
Ratio
White
1.00
Green
0.15
Red
0.13
3.5.1.2.1 Light filters. Colored lights shall be obtained by adding 180° (nominal) color
filters to white lights. The design shall be such that when two filters are installed, all light
emitted shall be of the specified color. The color division shall be as sharp as practicable, but the
color requirements of SAE AS25050 shall not apply within a 5° transition zone on each side of
the dividing plane passing through the 0 to 180° line.
3.5.2 Environmental. The light shall be capable of operating satisfactorily when
subjected to the following environmental conditions:
a. Temperatures ranging for -129.2 to +131 °F (-54 to +55 °C).
b. A relative humidity up to 100 percent with condensation.
c. Rainfall as encountered in any locale.
3.6 Interchangeability. All parts having the same manufacturer's part number shall be
functionally and dimensionally interchangeable. The drawing number requirements of
MIL-STD-31000 shall govern changes in the manufacturer's part numbers.
3.7 Dimensions. The overall height of the light shall not be more than 13.0 inches. The
length or width shall not be more than 8.50 inches.
3.8 Weight. The weight of the light with the filters installed shall not be more than
8.50 pounds.
3.9 Finishes and protective coatings. Unless fabricated from corrosion-resistant metal,
all metal parts shall be suitably protected against corrosion. The outside of the light shall be
finished with a high-grade yellow finish. All paint and finishes used shall be suitable for the
high-operating temperatures involved, and shall not cause parts of the light to stick together.
3.10 Identification of product. Equipment, assemblies, and parts shall be marked for
identification in accordance with MIL-STD-130. Manufacturer's serial numbers are not
required.
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