PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L.1544Lamp,incandescent

Itt Industries Cannon Veam · NSN 6240-00-916-1639 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-916-1639 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-916-1639. Primary manufacturer part number: L.1544.
Features
  • Lamp,incandescent — FSC 6240
  • Voltage Rating: 2.500 VOLTS NOMINAL
  • Current Rating for Which Designed: 0.350 AMPERES NOMINAL
  • Base Style: MIDGET FLANGED
  • Rated Average Life: INDEFINITE LONG
  • Bulb Style: T (TUBULAR)
  • Bulb Designator: T-1 3/4
  • Specification/standard Data: 08108-268 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-916-1639, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Itt Industries Cannon Veam. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 27 commercial cross-references from 24 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-00-916-1639
Primary Part NumberL.1544
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerItt Industries Cannon Veam
StatusACTIVE
Voltage Rating2.500 VOLTS NOMINAL
Current Rating for Which Designed0.350 AMPERES NOMINAL
Base StyleMIDGET FLANGED
Rated Average LifeINDEFINITE LONG
Bulb StyleT (TUBULAR)
Bulb DesignatorT-1 3/4
Specification/standard Data08108-268 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Light Output Rating0.200 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
Emitted Light CharacteristicCOLORLESS
Light Center Length0.438 INCHES NOMINAL IN
Filament DesignationC-2R
Filament Heavy Duty Service RatingNOT RATED
Bulb Light Transmission CharacteristicTRANSPARENT
Wattage Rating0.875 WATTS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5330-00-117-9086 INTERCHANGEABLE
Seal,valve
6240-00-267-7199CM2169 INTERCHANGEABLE
Lamp,incandescent
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
4820-01-398-570401-431-0032-3 INTERCHANGEABLE
Valve,check
Flowserve Corp Dba Automax Actuators Div Flowserve Us Company
5998-01-444-78148701-06 INTERCHANGEABLE
Circuit Card Assembly
Hough Marine and Machine Inc
Cross-Reference Index
Part NumberManufacturer
L.1544 Itt Industries Cannon Veam (GBR)
S-1504 Shokai Far East, Ltd. (USA)
268 Minilampe (FRA)
808 Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
87-0106 Finnigan Corporation (USA)
1-550-0043 Cincinnati Machine Co (USA)
L.1544 Itt Industries Limited, Itt Cannon Uk (GBR)
268 Gte Products Corp Lighting Products Group Hillsboro Miniature Lamp Plant (USA)
87-0106 Bae Systems Information & Electronic Systems Integration Inc. (USA)
CM268 Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
268 Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
LTX268 Lamptronix Co Ltd (USA)
4915459-001 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
268 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
268 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
PL-268 Superior Engineering and Electronics Co Inc (USA)
ML-268 Micro Lamps Inc. (USA)
268 Communication Systems Div North American Philips Corp (USA)
0L-268 Wamco, Inc. Dba Wamco Inc (USA)
5M2261-001 The Boeing Company Div Defense (USA)
Related Parts
5330-00-117-9086INTERCHANGEABLE
SEAL,VALVE
6240-00-267-7199INTERCHANGEABLE
LAMP,INCANDESCENT
CM2169
4820-01-398-5704INTERCHANGEABLE
VALVE,CHECK
01-431-0032-3
5998-01-444-7814INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
8701-06

Frequently Asked Questions

What is NSN 6240-00-916-1639?

NSN 6240-00-916-1639 is a Lamp,incandescent, manufactured by Itt Industries Cannon Veam, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-00-916-1639?

NSN 6240-00-916-1639 has 27 cross-referenced part numbers: L.1544 (Itt Industries Cannon Veam), S-1504 (Shokai Far East, Ltd.), 268 (Minilampe), 808 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch), 87-0106 (Finnigan Corporation) and 22 more.

What NSN replaces 6240-00-916-1639?

There are 4 known substitutes for 6240-00-916-1639: 5330-00-117-9086, 6240-00-267-7199, 4820-01-398-5704 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L.1544?

Key specifications for L.1544: Voltage Rating: 2.500 VOLTS NOMINAL; Current Rating for Which Designed: 0.350 AMPERES NOMINAL; Base Style: MIDGET FLANGED; Rated Average Life: INDEFINITE LONG. 16 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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