03-91080 Type
Incandescent Miniature
General Purpose
Size T-1 ¾
59-52280 Type
Incandescent Miniature
Optional Press to Test
Size T-1 ¾
01-91180 Type
Originally designed
to meet MS 25041
Incandescent Miniature
Size T-1 ¾
Press to Test
Material and Finishes
Mounting tube and nuts, alumi-
num, black anodized per
MIL-A-8625A. Lockwasher, stain-
less steel. Brass terminals, tin
plated per MIL-T-10727A.
Cap Assembly
Lens, high impact-resistant plastic
per L-P-349.
Lamp
T-1 ¾ midget  ange base. See
Lamp Selection Guide.
Mounting
Assembly mounts from rear of
panel. All mounting hardware
supplied. Recommended mount-
ing hole .500 in. ±015 in. dia.
Weight
Approximately .4 oz. less lamp.
Material and Finishes
Mounting tube and knurled nut,
clear anodized per MIL-A-8625A.
Mounting nut and key washer,
brass, nickel plate. Lockwasher,
stainless steel or steel, nickel plate,
Brass terminals, tin plated per
MIL-T-10727A.
Cap Assembly
Lens, high impact-resistant plastic
per L-P-349. Friction  t lens caps,
rotatable or keyed. Uses Presslite
friction cap pushbuttons.
Lamp
T-1 ¾ midget  ange base.
Mounting
Assembly mounts from rear of
panel. All mounting hardware
supplied. Recommended mount-
ing hole, see drawing.
Weight
Approximately .5 oz. less lamp.
Material and Finishes
Mounting tube and nuts, alu-
minum, black anodized per MtL-A-
8625A. Lockwasher, stainless steel.
Brass terminals, tin plated per
MIL-T-10727A.
Cap Assembly
Lens, high impact-resistant plastic
per L-P-349, NVG Green,  at glass
lens. Lens holders, aluminum,
black anodized.
Lamp
T-1 ¾ midget  ange base.
Mounting
Assembly mounts from rear of
panel. All mounting hardware
supplied. Recommended mount-
ing hole .500 in. ±.015 dia.
Identi cation
Identi ed with MS P/N and base
assembly number.
Weight
Approximately .5 oz. less lamp.
Optolite Products
27
03-90980 Type
Incandescent Miniature
Size T-1 ¾
02-91180 Type
Originally designed
to meet MS 25331
Incandescent Standard
Size T-3 ¼
05-90880 Type
05-90881 Type
Incandescent Miniature
Watertight - Size T-1 ¾
Press to Test
Material and Finishes
Mounting tube, black glass  lled
nylon per MIL-M-19887. Mounting
nut aluminum, black anodized
per MIL-A-8625A. Lockwasher,
stainless steeel or steel, nickel
plate. Brass terminals, tin plated
per MIL-T-10727A.
Cap Assembly
Lens, high impact-resistant plastic
per L-P-349. Lens holders are
aluminum, black anodized.
Lamp
T-1 ¾ midget  ange base.
Mounting
Assembly mounts from front of
panel. All mounting hardware
supplied. Recommended mount-
ing hole .500 in. +/- .015 in. dia.
Weight
Approx. .9 oz. less lamp.
Material and Finishes
Mounting tube and nuts, alumi-
num, black anodized per MIL-A-
8625A. Lockwasher, stainless steel.
Brass terminals, tin plated per
MIL-T-10727A.
Cap Assembly
Lens is high impact-resistant
plastic per L-P-34g. Lens holders,
aluminum, black anodized.
Lamp
T-3 ¼ miniature bayonet base.
Mounting
Assembly mounts from rear of
panel. All mounting hardware
supplied. Recommended mount-
ing hole .640 in. ± .015 in. dia.
Identi cation
Identi ed with MS P/N and base
assembly number
Weight
Approximately .8 oz. less lamp.
Material and Finishes
Mounting tube, black glass  lled
nylon per MIL-M-19887. Mounting
nut aluminum, black anodized per
MIL-A-8625A. Lockwasher, stain-
less steeel or steel, nickel plate.
Brass terminals, tin plated per
MIL-T-10727A. Rubber boot and
washer, silicone rubber.
Cap Assembly
Lens, high impact-resistant plastic
per L-P-349. Lens holders are
aluminum, black anodized.
Lamp
T-1 ¾ midget  ange base.
Mounting
Assembly mounts from front of
panel. All mounting hardware
supplied. Recommended mount-
ing hole .500 in. +/- .015 in. dia.
Weight
Approx. .3 oz. less lamp.
Optolite Products
28
05-91182 Type
Incandescent Miniature
Watertight - Size T-1 ¾
06-91182 Type
Incandescent Watertight
Size T-3 ¼
08-83281 Type
Incandescent Miniature
EMI Suppressed
Size T-1 ¾
Press to Test
Material and Finishes
Mounting tube and nuts,
aluminum, black anodized per
MIL-A-8625A. Lockwasher, stain-
less steel or steel, nickel plate.
Brass terminals, tin plated per
MIL-T-1O727A. Rubber boot and
washer, silicone rubber.
Cap Assembly
Lens, high impact-resistant plastic
per L-P-349 Lens holders are
aluminum, black anodized.
Lamp
T-1 ¾ midget  ange base.
Mounting
Assembly mounts from rear of
panel. All mounting hardware
supplied. Recommended mount-
ing hole .500 in. ± .015 in. dia.
Weight
Approximately .44 oz. less lamp.
Material and Finishes
Mounting tube and nuts,
aluminum, black anodized per
MIL-A-8625A. Lockwasher, stain-
less steel or steel, nickel plate.
Brass terminals, tin plated per
MIL-T-10727A. Rubber boot and
washer, silicone rubber.
Cap Assembly
Lens, high impact-resistant plastic
per L-P-349. Lens holders, alumi-
num, black anodized.
Lamp
T-3 ¼ miniature bayonet base.
Mounting
Assembly mounts from rear of
panel. All mounting hardware
supplied. Recommended mount-
ing hole .640 in. ± .015 in. dia.
Weight
Approximately .85 oz. less lamp.
Material and Finishes
Lens holder and front mounting
nut is black anodized per MIL-A-
8625A. Mounting tube & rear Mtg.
nut, is bright nickel plated per
QQ-N-200. Lockwasher is stainless
steel. Terminals brass, gold plated
per MIL-G-45204.
Cap Assembly
Lens is high impact-resistant
plastic per L-P-349. Lens. holders
are aluminum, black anodized.
Lamp
T-1 ¾ midget  ange base.
Mounting
Assembly mounts from rear of
panel. All mounting hardware
supplied. Flat on Mtg. tube pro-
vides for keyed installation.
Weight
Approx. .5 oz less lamp.
Optolite Products
29
08-83283 Type
Incandescent Miniature
EMI Suppressed Watertight
Size T-1 ¾
04-VM906 Type
Incandescent General Purpose
Size T-3 ¼
Press to Test
Material and Finishes
Round mounting nut, aluminum,
black anodized per MIL-A-8625A.
Mounting tube and mounting
nut, bright nickel plated per
QQ-N-290. Lockwasher, steel,
nickel plated. Rubber boot and
washer, silicone rubber Brass
terminals, gold plated per MIL-
G-45204,
Cap Assembly
Lens, high impact-resistant plastic
per L-P-349. Lens holders, alumi-
num, black anodized.
Lamp
T-1 ¾ midget  ange base.
Mounting
Assembly mounts from rear of
panel. All mounting hardware
supplied. Flat on mounting tube
provides for keyed installation.
Weight
Approximately .6 oz. less lamp.
Material and Finishes
Mounting tube, aluminum, black
anodized per MIL-A-8625A.
Mounting nut, steel cad plate per
QQ-P-416. Lockwasher, stainless
steel or steel, nickel plate. Brass
terminals, tin plated per MIL-T-
10727A.
Cap Assembly
Lens, high impact-resistant plastic
per L-P-349. Standard colors are
semi-di using.
Lamp
T-3 ¼ miniature bayonet base.
Mounting
Assembly mounts from front of
panel. All mounting hardware
supplied. Recommended mount-
ing hole .640 in. +/- .015 in. dia.
Weight
Approx. .55 oz. less lamp.
Optolite Products
Electroswitch Electronic Products • 2010 Yonkers Road • Raleigh, North Carolina
T 888-768-2797 • F 800-909-9171 • www.electro-nc.com
30
03-93480 Type
03-93481 Type
Incandescent Miniature
General Purpose - Size T-1 ¾
99-33080 Type
99-33081 Type
Incandescent Subminiature
General Purpose - Size T-1
Press to Test
Push In
Materials and Fiber
Mounting tube and nuts are
aluminum, black anodized per
MIL-A-8625A. Lockwasher, stain-
less steel or steel, nickel plated.
Terminals are 4-40 screws, nickel
plate QQ-N-290.
Cap Assembly
Lens is high impact-resistant
plastic per L-P-349a.
Lamp
T-1 ¾ midget  ange base.
Standard colors are transparent.
Also available in translucent or
di using caps.
Mounting
Assembly mounts from rear of
panel. All mounting hardware
supplied. Recommended mount-
ing hole .500 ± .015 diameter.
Weight
Approximately .50 oz. less lamp.
Material and Finishes
Housing and lamp base, gray glass
lled nylon. Terminals, beryllium
copper, gold  ashed. Retainer clip,
stainless steel.
Lens Cap
High impact-resistant plastic per
L-P-393 (polycarbonate).
Lamp
T-1 wire terminal lamp; Lamp is
replaced by removing snap-on
cap.
Mounting
Press-in: Assembly press  ts into
.189 in. dia. hole. No mounting
hardware required.
Retainer clip: For mounting
assembly into .200 in. ± 005 in.
dia. hole or panels less than .06
in. thick. Order clip 2-1186-643
separately.
Optolite Products
Electroswitch Electronic Products • 2010 Yonkers Road • Raleigh, North Carolina
T 888-768-2797 • F 800-909-9171 • www.electro-nc.com
31