PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CM8666Lamp,incandescent

Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron · NSN 6240-00-906-4062 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-906-4062 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-906-4062. Primary manufacturer part number: CM8666.
Features
  • Lamp,incandescent — FSC 6240
  • Rated Average Life: HOURS
  • Bulb Style: T (TUBULAR)
  • Current Rating for Which Designed: 0.080 AMPERES NOMINAL
  • Filament Heavy Duty Service Rating: NOT RATED
  • Base Style: WIRE LEADS, DOWN
  • Emitted Light Characteristic: COLORLESS
  • Average Life Rating in Hours: 15000.0
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-906-4062, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 14 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
NSN6240-00-906-4062
Primary Part NumberCM8666
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerChicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
StatusCANCELLED
Rated Average LifeHOURS
Bulb StyleT (TUBULAR)
Current Rating for Which Designed0.080 AMPERES NOMINAL
Filament Heavy Duty Service RatingNOT RATED
Base StyleWIRE LEADS, DOWN
Emitted Light CharacteristicCOLORLESS
Average Life Rating in Hours15000.0
Bulb DesignatorT-3/4
Light Output Rating0.150 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
Bulb Light Transmission CharacteristicTRANSPARENT
Voltage Rating5.000 VOLTS NOMINAL
Specification/standard Data08108-8666 MANUFACTURERS STANDARD
Filament DesignationC-2R
Wire Lead Length1.250 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
Wattage Rating0.400 WATTS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6625-00-009-4837 INTERCHANGEABLE
Lead Set,test
4520-00-232-48772919 INTERCHANGEABLE
Heating Element,electrical,nonim
Goodrich Corporation
5815-00-412-56378463 INTERCHANGEABLE
Head Hammer
Telemechanics Inc
1680-00-529-8264963882-841 INTERCHANGEABLE
Liner,free Fall Chute
I.m.p Group Limited Div Aerospace
6850-00-570-936010-8666 INTERCHANGEABLE
Cleaning and Lubricating Compoun
Gc/waldom Inc
4730-00-622-58438666 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Danuser Machine Co
5310-00-741-47027414702 INTERCHANGEABLE
Nut,plain,octagon
U S Army Tank Automotive Command Amsta-Im-Mm
3110-00-839-1742MU1305TDM INTERCHANGEABLE
Bearing,roller,cylindrical
Federal-Mogul Corp Government Sales Dept
4730-00-883-2180314396 INTERCHANGEABLE
Locknut,tube Fitting
Parker Hannifin Corporation Div Hydraulic Systems Division
5960-00-942-0934 INTERCHANGEABLE
Electron Tube
Cross-Reference Index
Part NumberManufacturer
34 Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
PL8666 Precision Lamp Inc (USA)
8463 Bach Auricon Inc (USA)
2127300 Momentum Technologies Inc (USA)
CM8666 PRIMARY Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
CM8-666 Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
94095000 General Dynamics Information Systems Inc Gdis Div (USA)
8666 PRIMARY Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
302003801 Momentum Technologies Inc (USA)
3022919-052-101 Lockheed Martin Corporation Div Lockheed Martin Systems & Global Solutions (USA)
2504103-4 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
2504103-004 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
A7-07-0655/4 Invisio Communications Ltd (GBR)
23269 Ncr Corporation Dba Ncr (USA)
314.396 Lockheed Martin Corp (USA)
LA34 Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
0659148-0701 Raytheon Company Dba Raytheon Co (USA)
8666 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
94095000 Peripheral Dynamics, Inc (USA)
Related Parts
6625-00-009-4837INTERCHANGEABLE
LEAD SET,TEST
4520-00-232-4877INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
2919
5815-00-412-5637INTERCHANGEABLE
HEAD HAMMER
8463
1680-00-529-8264INTERCHANGEABLE
LINER,FREE FALL CHUTE
963882-841
6850-00-570-9360INTERCHANGEABLE
CLEANING AND LUBRICATING COMPOUN
10-8666
4730-00-622-5843INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
8666
5310-00-741-4702INTERCHANGEABLE
NUT,PLAIN,OCTAGON
7414702
3110-00-839-1742INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
MU1305TDM
4730-00-883-2180INTERCHANGEABLE
LOCKNUT,TUBE FITTING
314396
5960-00-942-0934INTERCHANGEABLE
ELECTRON TUBE
5310-01-056-2174INTERCHANGEABLE
NUT,PLAIN,ROUND
8666
4710-01-142-1798INTERCHANGEABLE
TUBE ASSEMBLY,METAL
31-4396-1

Frequently Asked Questions

What is NSN 6240-00-906-4062?

NSN 6240-00-906-4062 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 6240-00-906-4062?

NSN 6240-00-906-4062 has 19 cross-referenced part numbers: 34 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch), PL8666 (Precision Lamp Inc), 8463 (Bach Auricon Inc), 2127300 (Momentum Technologies Inc), CM8666 (Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron) and 14 more.

What NSN replaces 6240-00-906-4062?

There are 12 known substitutes for 6240-00-906-4062: 6625-00-009-4837, 4520-00-232-4877, 5815-00-412-5637 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CM8666?

Key specifications for CM8666: Rated Average Life: HOURS; Bulb Style: T (TUBULAR); Current Rating for Which Designed: 0.080 AMPERES NOMINAL; Filament Heavy Duty Service Rating: NOT RATED. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-906-4062 still in active supply?

NSN 6240-00-906-4062 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.
PartsTable Design LLC · partstable.com