PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CM50Lamp,incandescent

Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron · NSN 6240-00-155-7856 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-155-7856 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-155-7856. Primary manufacturer part number: CM50.
Features
  • Lamp,incandescent — FSC 6240
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Wattage Rating: 1.650 WATTS
  • Bulb Style: G (GLOBULAR)
  • Current Rating for Which Designed: 0.220 AMPERES NOMINAL
  • Bulb Designator: G-3 1/2
  • Filament Heavy Duty Service Rating: NOT RATED
  • Voltage Rating: 7.500 VOLTS NOMINAL
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-155-7856, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 19 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6240-00-155-7856
Primary Part NumberCM50
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerChicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
StatusCANCELLED
Bulb Light Transmission CharacteristicTRANSPARENT
Wattage Rating1.650 WATTS
Bulb StyleG (GLOBULAR)
Current Rating for Which Designed0.220 AMPERES NOMINAL
Bulb DesignatorG-3 1/2
Filament Heavy Duty Service RatingNOT RATED
Voltage Rating7.500 VOLTS NOMINAL
Light Output Rating1.000 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
Rated Average LifeHOURS
Average Life Rating in Hours1000.0
Base StyleMINIATURE SCREW
Filament DesignationC-2R
Emitted Light CharacteristicCOLORLESS
Light Center Length0.720 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-013-7409SAE J512 8-6 040102B INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
6740-00-197-1769 INTERCHANGEABLE
Drier,photographic Print
3460-00-233-3869 INTERCHANGEABLE
Holder,cutting Tool
2530-00-272-7518MCFE050 INTERCHANGEABLE
Weight,wheel Balancing
Napa Automotive Parts Co
5120-00-287-2502 INTERCHANGEABLE
Screwdriver,flat Tip
6625-00-433-4262S50 INTERCHANGEABLE
Generator,pulse
Tektronix, Inc.
5935-00-493-3244PL50-5 INTERCHANGEABLE
Connector,plug,electrical
Trompeter Electronics, Inc.
5340-00-527-9913S50 INTERCHANGEABLE
Plunger,quick Release
Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier
3695-00-679-6914 INTERCHANGEABLE
Saw,chain
6680-00-808-9023S50 INTERCHANGEABLE
Indicator,sight,liquid
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
Cross-Reference Index
Part NumberManufacturer
6240001557856 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
CM50 Satair A/s (DNK)
S-50 Shokai Far East, Ltd. (USA)
50 Shelly Associates Inc. (USA)
CM50 PRIMARY Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
50 General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
50 Communication Systems Div North American Philips Corp (USA)
50 Cooper Industries Inc Champion Aviation Products (USA)
50 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
50 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
849546-22 Rca Corp Consumer Electronics (USA)
7936820-493 General Motors Llc Dba General Motors (USA)
50 Inter-Market Inc (USA)
PL50 Precision Lamp Inc (USA)
87-0322 Finnigan Corporation (USA)
2Z5882-3 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
533607-1 Raytheon Company Dba Raytheon (USA)
LTX50 Lamptronix Co Ltd (USA)
LTX 50 Wamco, Inc. Dba Wamco Inc (USA)
Related Parts
4730-00-013-7409INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
SAE J512 8-6 040102B
6740-00-197-1769INTERCHANGEABLE
DRIER,PHOTOGRAPHIC PRINT
3460-00-233-3869INTERCHANGEABLE
HOLDER,CUTTING TOOL
2530-00-272-7518INTERCHANGEABLE
WEIGHT,WHEEL BALANCING
MCFE050
5120-00-287-2502INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
6625-00-433-4262INTERCHANGEABLE
GENERATOR,PULSE
S50
5935-00-493-3244INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
PL50-5
5340-00-527-9913INTERCHANGEABLE
PLUNGER,QUICK RELEASE
S50
3695-00-679-6914INTERCHANGEABLE
SAW,CHAIN
6680-00-808-9023INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
S50
6680-00-845-1413INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
S50K
6680-00-865-7928INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
S50M

Frequently Asked Questions

What is NSN 6240-00-155-7856?

NSN 6240-00-155-7856 is a Lamp,incandescent, manufactured by Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-155-7856?

NSN 6240-00-155-7856 has 19 cross-referenced part numbers: 6240001557856 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), CM50 (Satair A/s), S-50 (Shokai Far East, Ltd.), 50 (Shelly Associates Inc.), CM50 (Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron) and 14 more.

What NSN replaces 6240-00-155-7856?

There are 12 known substitutes for 6240-00-155-7856: 4730-00-013-7409, 6740-00-197-1769, 3460-00-233-3869 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CM50?

Key specifications for CM50: Bulb Light Transmission Characteristic: TRANSPARENT; Wattage Rating: 1.650 WATTS; Bulb Style: G (GLOBULAR); Current Rating for Which Designed: 0.220 AMPERES NOMINAL. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-155-7856 still in active supply?

NSN 6240-00-155-7856 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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