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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
.650
.550
O-RING
5131-038 5139-038
5/16-32 THD. 5/16-32 THD.
.438
.421
.438
.578
All dimensions
131A-30XX 139A-40XX
in inches.
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 MIL-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 Description
131A-303R 139A-403R Transparent Red
131A-303A 139A-403A Transparent Amber
131A-303G - Transparent Green
131A-303C 139A-403C Transparent Clear
131A-304R 139A-404R Translucent Red
131A-304Y 139A-404Y Translucent Yellow
131A-304G 139A-404G Translucent Green
131A-304W 139A-404W Translucent White
Mounting Hole: .484, 5131 Type has a keyed flange anti-rotation feature,
5139 Type features a flat hole mounting
Mounting Centers: .750
Maximum Panel Thickness: 5131 type - .265, 5139 type - .188
Housing/Material: Black anodized aluminum
Terminals: Tin plated brass, center contact terminal marked +
Hex Nut: Chrome treated steel
Lockwasher: Chrome treated steel
Lens: High temperature lexan
Lens Shank: Nickel plated brass
Electrical rating: up to 30 Volts, up to 2 Watt
CML and Chicago Miniature Lamp are registered trademarks of Visual Communications Company, LLC.