PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CM-2Lamp,incandescent

Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron · NSN 6240-01-033-4037 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-033-4037 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-033-4037. Primary manufacturer part number: CM-2.
Features
  • Lamp,incandescent — FSC 6240
  • Filament Designation: C-2R
  • Emitted Light Characteristic: BLUE
  • Rated Average Life: HOURS
  • Voltage Rating: 5.000 VOLTS NOMINAL
  • Average Life Rating in Hours: 10000.0
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Current Rating for Which Designed: 0.021 AMPERES NOMINAL
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-01-033-4037, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-033-4037
Primary Part NumberCM-2
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerChicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
StatusACTIVE
Filament DesignationC-2R
Emitted Light CharacteristicBLUE
Rated Average LifeHOURS
Voltage Rating5.000 VOLTS NOMINAL
Average Life Rating in Hours10000.0
Bulb Light Transmission CharacteristicTRANSPARENT
Current Rating for Which Designed0.021 AMPERES NOMINAL
Bulb DesignatorT-3/4
Color Temp in Deg Kelvin3200.0
Wattage Rating200.000 WATTS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6645-00-052-3201 INTERCHANGEABLE
Timer
5935-00-153-436631-2226-1051 INTERCHANGEABLE
Connector,plug,electrical
Amphenol Corporation Div Amphenol Rf
6520-00-519-660043-593 INTERCHANGEABLE
Curette,alveolar
Sklar Corporation Dba Sklar Instruments
5220-00-968-4609CM2 INTERCHANGEABLE
Gage,plug,plain Cylindrical
Comtorgage Corporation
5935-01-451-9001 INTERCHANGEABLE
Clamp,cable,electrical Connector
6515-01-502-9280CM2 INTERCHANGEABLE
Curette,bone
Hu-Friedy Mfg. Co., Llc
4140-01-534-3951F80256X12B-FHR INTERCHANGEABLE
Fan,tubeaxial
Mechatronics, Inc. Div National Precision Bearing
4140-01-534-3962F8025X24B-FH INTERCHANGEABLE
Fan,tubeaxial
Mechatronics, Inc. Div National Precision Bearing
Cross-Reference Index
Part NumberManufacturer
58000004 Thales Uk Limited Dba Thales Uk Ltd Optronics (GBR)
CM-2 PRIMARY Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
58000003 Thales Uk Limited Dba Thales Uk Ltd Optronics (GBR)
Related Parts
6645-00-052-3201INTERCHANGEABLE
TIMER
5935-00-153-4366INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
31-2226-1051
6520-00-519-6600INTERCHANGEABLE
CURETTE,ALVEOLAR
43-593
5220-00-968-4609INTERCHANGEABLE
GAGE,PLUG,PLAIN CYLINDRICAL
CM2
5935-01-451-9001INTERCHANGEABLE
CLAMP,CABLE,ELECTRICAL CONNECTOR
6515-01-502-9280INTERCHANGEABLE
CURETTE,BONE
CM2
4140-01-534-3951INTERCHANGEABLE
FAN,TUBEAXIAL
F80256X12B-FHR
4140-01-534-3962INTERCHANGEABLE
FAN,TUBEAXIAL
F8025X24B-FH

Frequently Asked Questions

What is NSN 6240-01-033-4037?

NSN 6240-01-033-4037 is a Lamp,incandescent, manufactured by Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-033-4037?

NSN 6240-01-033-4037 has 3 cross-referenced part numbers: 58000004 (Thales Uk Limited Dba Thales Uk Ltd Optronics), CM-2 (Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron), 58000003 (Thales Uk Limited Dba Thales Uk Ltd Optronics).

What NSN replaces 6240-01-033-4037?

There are 8 known substitutes for 6240-01-033-4037: 6645-00-052-3201, 5935-00-153-4366, 6520-00-519-6600 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CM-2?

Key specifications for CM-2: Overall Length: 0.250 INCHES MAXIMUM IN; Filament Designation: C-2R; Emitted Light Characteristic: BLUE; Rated Average Life: HOURS. 11 total characteristics are documented in the Federal Logistics Information System.

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