PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1561Lamp,incandescent

General Electric Co Miniature Lamp Products Dept Lighting Business Group · NSN 6240-00-939-5493 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-939-5493 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-939-5493. Primary manufacturer part number: 1561.
Features
  • Lamp,incandescent — FSC 6240
  • Light Output Rating: 24.000 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
  • Average Life Rating in Hours: 1500.0
  • Specification/standard Data: 08108-1561 MANUFACTURERS STANDARD
  • Bulb Designator: S-11
  • Filament Heavy Duty Service Rating: NOT RATED
  • Light Center Length: 0.875 INCHES NOMINAL IN
  • Emitted Light Characteristic: WHITE
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-939-5493, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is General Electric Co Miniature Lamp Products Dept Lighting Business Group. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-00-939-5493
Primary Part Number1561
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerGeneral Electric Co Miniature Lamp Products Dept Lighting Business Group
StatusACTIVE
Light Output Rating24.000 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
Average Life Rating in Hours1500.0
Specification/standard Data08108-1561 MANUFACTURERS STANDARD
Bulb DesignatorS-11
Filament Heavy Duty Service RatingNOT RATED
Light Center Length0.875 INCHES NOMINAL IN
Emitted Light CharacteristicWHITE
Bulb Light Transmission CharacteristicTRANSPARENT
Bulb StyleS (STRAIGHT SIDE)
Rated Average LifeHOURS
Current Rating for Which Designed4.000 AMPERES NOMINAL
Base StyleSINGLE CONTACT CANDELABRA PREFOCUS
Filament DesignationC-8Z
Voltage Rating6.300 VOLTS NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-063-9059 INTERCHANGEABLE
Gasket
6510-00-100-16121561H INTERCHANGEABLE
Pad,foam,surgical
3m Company Div Health Care Business
5310-00-167-0721MS35333-41 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5840-00-197-01791561 INTERCHANGEABLE
Roller,feed Drive
Gifft T H Co Inc
1620-00-250-4658156-1 INTERCHANGEABLE
Plate,grease Seal,l
Textron Aviation Inc
5930-00-259-9550724542 INTERCHANGEABLE
Switch,rotary
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4730-00-554-7397MS21921-6W INTERCHANGEABLE
Nut,tube Coupling
Sae International Dba Sae International
5340-00-598-70991561 INTERCHANGEABLE
Bumper
Atlantic India Rubber Co Inc
5895-00-644-5712 INTERCHANGEABLE
Converter,frequency,electronic
5330-00-737-26121561 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
Cross-Reference Index
Part NumberManufacturer
1561 General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
WL111 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5330-00-063-9059INTERCHANGEABLE
GASKET
6510-00-100-1612INTERCHANGEABLE
PAD,FOAM,SURGICAL
1561H
5310-00-167-0721INTERCHANGEABLE
WASHER,LOCK
MS35333-41
5840-00-197-0179INTERCHANGEABLE
ROLLER,FEED DRIVE
1561
1620-00-250-4658INTERCHANGEABLE
PLATE,GREASE SEAL,L
156-1
5930-00-259-9550INTERCHANGEABLE
SWITCH,ROTARY
724542
4730-00-554-7397INTERCHANGEABLE
NUT,TUBE COUPLING
MS21921-6W
5340-00-598-7099INTERCHANGEABLE
BUMPER
1561
5895-00-644-5712INTERCHANGEABLE
CONVERTER,FREQUENCY,ELECTRONIC
5330-00-737-2612INTERCHANGEABLE
SEAL,PLAIN ENCASED
1561
5940-00-739-7463INTERCHANGEABLE
TERMINAL,LUG
1561
6640-01-070-7305INTERCHANGEABLE
FILLING DEVICE,BUCKET
1561

Frequently Asked Questions

What is NSN 6240-00-939-5493?

NSN 6240-00-939-5493 is a Lamp,incandescent, manufactured by General Electric Co Miniature Lamp Products Dept Lighting Business Group, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-00-939-5493?

NSN 6240-00-939-5493 has 2 cross-referenced part numbers: 1561 (General Electric Co Miniature Lamp Products Dept Lighting Business Group), WL111 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 6240-00-939-5493?

There are 12 known substitutes for 6240-00-939-5493: 5330-00-063-9059, 6510-00-100-1612, 5310-00-167-0721 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1561?

Key specifications for 1561: Light Output Rating: 24.000 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING; Average Life Rating in Hours: 1500.0; Specification/standard Data: 08108-1561 MANUFACTURERS STANDARD; Bulb Designator: S-11. 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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