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Midget Flange Relampable Indicator Lights
Description and Features
Standard
Watertight
.781
15/32-32 THD.
.770
.085
15/32-32 THD.
.032
Ø.650
Ø.550
O-RING
5131-038
5139-038
5/16-32 THD.
5/16-32 THD.
.438
.421
Ø.438
Ø.578
All dimensions
in inches.
131A-30XX
139A-40XX
The Chicago Miniature Lamp Midget Flange Indicator Lights are versatile, industry standard, front panel indicator
lights capable of accepting any T-1 3/4 midget flange base lamp. These high quality indicators provide reliable
service in a vast array of commercial and military applications (conforming to ML-L-3661). Lamps are easily
replaced from the front panel. These indicator lights are available in both a standard configuration and a watertight
configuration providing reliable status indication in the most demanding of environments. The lamp is not included
with this indicator light; please order the required lamp separately.
Specifications
Standard
Watertight
139A-403R
139A-403A
Description
131A-303R
131A-303A
Transparent Red
Transparent Amber
131A-303G
131A-303C
131A-304R
131A-304Y
139A-403G
139A-403C
139A-404R
139A-404Y
Transparent Green
Transparent Clear
Translucent Red
Translucent Yellow
131A-304G
131A-304W
139A-404G
139A-404W
Translucent Green
Translucent White
Mounting Hole:
.484, 5131 Type has a keyed flange anti-rotation feature,
5139 Type features a flat "D" hole mounting
.750
Mounting Centers:
Maximum Panel Thickness: 5131 type - .265, 5139 type - .188
Housing/Material:
Terminals:
Black anodized aluminum
Tin plated brass, center contact terminal marked +
Chrome treated steel
Hex Nut:
Lockwasher:
Lens:
Chrome treated steel
High temperature lexan
Lens Shank:
Electrical rating:
Nickel plated brass
up to 30 Volts, up to 2 Watt
CML and Chicago Miniature Lamp are registered trademarks of Visual Communications Company, LLC.