147 Central Avenue
Hackensack, New Jersey 07601
Tel: 201-489-8989 • Fax: 201-489-6911
C
HICAGO
M
INIATURE
L
AMP,
I
NC.
WHERE INNOVATION COMES TO LIGHT
Midget Flange Relampable Indicator Lights
DESCRIPTION AND FEATURES
Standard
15/32-32 T HD.
.770
.032
15/32-32 T HD.
Watertight
.781
.085
Ø.550
Ø.650
5131-038
5/16-32 T HD.
.421
Ø.438
5139-038
5/16-32 T HD.
O-R ING
.438
Ø.578
131A-30XX
139A-40XX
All dimensions
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 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
131A-303R
131A-303A
131A-303G
131A-303C
131A-304R
131A-304Y
131A-304G
131A-304W
Mounting Hole:
Watertight
139A-403R
139A-403A
139A-403G
139A-403C
139A-404R
139A-404Y
139A-404G
139A-404W
Description
Transparent Red
Transparent Amber
Transparent Green
Transparent Clear
Translucent Red
Translucent Yellow
Translucent Green
Translucent White
.484, 5131 Type has a keyed flange anti-rotation feature,
5139 Type features a flat "D" 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
Chicago Miniature Lamp reserves the right to make specification revisions that enhance the design and/or performance of the product
4-57