PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

24XLamp,incandescent

Westinghouse Electric Corp · NSN 6240-00-178-9941 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-178-9941 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-178-9941. Primary manufacturer part number: 24X.
Features
  • Lamp,incandescent — FSC 6240
  • Voltage Rating: 24.000 VOLTS NOMINAL
  • Base Style: TELEPHONE SLIDE SPECIAL
  • Rated Average Life: HOURS
  • Average Life Rating in Hours: 5000.0
  • Filament Heavy Duty Service Rating: NOT RATED
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Light Output Rating: 0.200 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-178-9941, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Westinghouse Electric Corp. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-00-178-9941
Primary Part Number24X
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerWestinghouse Electric Corp
StatusACTIVE
Voltage Rating24.000 VOLTS NOMINAL
Base StyleTELEPHONE SLIDE SPECIAL
Rated Average LifeHOURS
Average Life Rating in Hours5000.0
Filament Heavy Duty Service RatingNOT RATED
Bulb Light Transmission CharacteristicTRANSPARENT
Light Output Rating0.200 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
Bulb StyleT (TUBULAR)
Emitted Light CharacteristicCOLORLESS
Wattage Rating0.768 WATTS AND 0.912 WATTS
Current Rating for Which Designed0.032 AMPERES MINIMUM AND 0.038 AMPERES MAXIMUM
Bulb DesignatorT-2
Filament DesignationC-2F
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5999-00-204-5241575R917H01 INTERCHANGEABLE
Clip,electrical
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6625-00-248-24803A1 INTERCHANGEABLE
Plug-in Unit,electrical-Electron
Tektronix, Inc.
4730-00-278-8886SAE J512 4-4 040101BA INTERCHANGEABLE
Coupling,tube
Sae International Dba Sae International
5960-00-296-2110865768-1 INTERCHANGEABLE
Retainer,electron Tube
Lockheed Martin Corporation Div Rms - Mitchel Field
5950-00-646-3101 INTERCHANGEABLE
Transformer,audio Frequency
6660-00-663-4629CY1397PM INTERCHANGEABLE
Case,anemometer
Joint Electronics Type Designation System
6105-00-896-4057 INTERCHANGEABLE
Motor,alternating Current
4820-01-044-946916154 INTERCHANGEABLE
Liner,cylinder,valv
Leslie Controls, Inc. Dba Leslie Controls Inc
2540-01-354-294827Z549D1 INTERCHANGEABLE
Channel,lift,vehicle Window Glas
Morris Material Handling, Inc.
6640-01-583-1390370 INTERCHANGEABLE
Incubator,bacteriological
Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division
Cross-Reference Index
Part NumberManufacturer
24X Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
3A1 At and T Corp (USA)
24X Shelly Associates Inc. (USA)
24X General Electric Company (USA)
LTX24X Lamptronix Co Ltd (USA)
3A1 American Telephone and Telegraph Co (USA)
24X Communication Systems Div North American Philips Corp (USA)
24X General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
87-0369 Finnigan Corporation (USA)
16154 Rca Corp Government and Commercial Systems Commercial Commications Systems Div (USA)
PL24X Precision Lamp Inc (USA)
24X Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
902NEMA24X General Electric Company (USA)
T2-902-24V032AMP General Electric Company (USA)
24X PRIMARY Westinghouse Electric Corp (USA)
P10-B24D-CHV La Marche Mfg Co. Dba La Marche (USA)
24X-2 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
Related Parts
5999-00-204-5241INTERCHANGEABLE
CLIP,ELECTRICAL
575R917H01
6625-00-248-2480INTERCHANGEABLE
PLUG-IN UNIT,ELECTRICAL-ELECTRON
3A1
4730-00-278-8886INTERCHANGEABLE
COUPLING,TUBE
SAE J512 4-4 040101BA
5960-00-296-2110INTERCHANGEABLE
RETAINER,ELECTRON TUBE
865768-1
5950-00-646-3101INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
6660-00-663-4629INTERCHANGEABLE
CASE,ANEMOMETER
CY1397PM
6105-00-896-4057INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
4820-01-044-9469INTERCHANGEABLE
LINER,CYLINDER,VALV
16154
2540-01-354-2948INTERCHANGEABLE
CHANNEL,LIFT,VEHICLE WINDOW GLAS
27Z549D1
6640-01-583-1390INTERCHANGEABLE
INCUBATOR,BACTERIOLOGICAL
370

Frequently Asked Questions

What is NSN 6240-00-178-9941?

NSN 6240-00-178-9941 is a Lamp,incandescent, manufactured by Westinghouse Electric Corp, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-00-178-9941?

NSN 6240-00-178-9941 has 17 cross-referenced part numbers: 24X (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company), 3A1 (At and T Corp), 24X (Shelly Associates Inc.), 24X (General Electric Company), LTX24X (Lamptronix Co Ltd) and 12 more.

What NSN replaces 6240-00-178-9941?

There are 10 known substitutes for 6240-00-178-9941: 5999-00-204-5241, 6625-00-248-2480, 4730-00-278-8886 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 24X?

Key specifications for 24X: Voltage Rating: 24.000 VOLTS NOMINAL; Special Features: RAISED PRICK PUNCHS IN BASE; Base Style: TELEPHONE SLIDE SPECIAL; Rated Average Life: HOURS. 15 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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