PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CM1665Lamp,incandescent

Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron · NSN 6240-00-241-9703 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-241-9703 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-241-9703. Primary manufacturer part number: CM1665.
Features
  • Lamp,incandescent — FSC 6240
  • Voltage Rating: 28.000 VOLTS NOMINAL
  • Base Style: SINGLE CONTACT BAYONET CANDELABRA
  • Rated Average Life: HOURS
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Emitted Light Characteristic: COLORLESS
  • Wattage Rating: 22.400 WATTS
  • Average Life Rating in Hours: 1000.0
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-241-9703, 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 11 commercial cross-references from 10 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
NSN6240-00-241-9703
Primary Part NumberCM1665
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerChicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
StatusCANCELLED
Voltage Rating28.000 VOLTS NOMINAL
Base StyleSINGLE CONTACT BAYONET CANDELABRA
Rated Average LifeHOURS
Bulb Light Transmission CharacteristicTRANSPARENT
Emitted Light CharacteristicCOLORLESS
Wattage Rating22.400 WATTS
Average Life Rating in Hours1000.0
Light Output Rating21.000 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
Light Center Length1.130 INCHES NOMINAL IN
Current Rating for Which Designed0.800 AMPERES NOMINAL
Bulb DesignatorS-8
Bulb StyleS (STRAIGHT SIDE)
Filament Heavy Duty Service RatingNOT RATED
Filament DesignationC-2V V
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5905-00-259-3935 INTERCHANGEABLE
Resistor,variable,wire Wound,non
5330-00-285-4841 INTERCHANGEABLE
Seal,plain Encased
5310-00-638-84291665 INTERCHANGEABLE
Nut,plain,round
Microwave Engineering Corporation
3040-00-842-6098 INTERCHANGEABLE
Cylinder Assembly,actuating,line
5950-00-945-66711665 INTERCHANGEABLE
Coil,radio Frequency
American Precision Industries Inc.
5945-00-967-3616 INTERCHANGEABLE
Solenoid,electrical
6520-01-120-26571-665 INTERCHANGEABLE
Impression Tray,dental
Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia
4820-01-273-371420232-2 PL1841 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-273-373120229-2 PL1841 INTERCHANGEABLE
Guide,valve Stem
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-284-487320-1.50IN SET 64PSI INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Cross-Reference Index
Part NumberManufacturer
AML-1665 Advanced Micro Lites Inc (USA)
6240PL1804846 Jednolity Indeks Materialowy - Uniform Material Index (POL)
1665 Flite Path Pty Ltd (AUS)
1665 The Boeing Company Div Defense (USA)
1665 Communication Systems Div North American Philips Corp (USA)
1665 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
1665 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
CM1665 PRIMARY Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
1665 General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
GE1665 General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
1665 Grimes Aerospace Company (USA)
Related Parts
5905-00-259-3935INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5330-00-285-4841INTERCHANGEABLE
SEAL,PLAIN ENCASED
5310-00-638-8429INTERCHANGEABLE
NUT,PLAIN,ROUND
1665
3040-00-842-6098INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
5950-00-945-6671INTERCHANGEABLE
COIL,RADIO FREQUENCY
1665
5945-00-967-3616INTERCHANGEABLE
SOLENOID,ELECTRICAL
6520-01-120-2657INTERCHANGEABLE
IMPRESSION TRAY,DENTAL
1-665
4820-01-273-3714INTERCHANGEABLE
CAP,VALVE
20232-2 PL1841
4820-01-273-3731INTERCHANGEABLE
GUIDE,VALVE STEM
20229-2 PL1841
4820-01-284-4873INTERCHANGEABLE
VALVE,SAFETY RELIEF
20-1.50IN SET 64PSI
5342-01-307-1920INTERCHANGEABLE
GUIDE,CLUTCH
1665
6150-01-350-0970INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
1665

Frequently Asked Questions

What is NSN 6240-00-241-9703?

NSN 6240-00-241-9703 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 6240-00-241-9703?

NSN 6240-00-241-9703 has 11 cross-referenced part numbers: AML-1665 (Advanced Micro Lites Inc), 6240PL1804846 (Jednolity Indeks Materialowy - Uniform Material Index), 1665 (Flite Path Pty Ltd), 1665 (The Boeing Company Div Defense), 1665 (Communication Systems Div North American Philips Corp) and 6 more.

What NSN replaces 6240-00-241-9703?

There are 12 known substitutes for 6240-00-241-9703: 5905-00-259-3935, 5330-00-285-4841, 5310-00-638-8429 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CM1665?

Key specifications for CM1665: Voltage Rating: 28.000 VOLTS NOMINAL; Base Style: SINGLE CONTACT BAYONET CANDELABRA; Rated Average Life: HOURS; Bulb Light Transmission Characteristic: TRANSPARENT. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-241-9703 still in active supply?

NSN 6240-00-241-9703 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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