PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4557Lamp,incandescent

American National Standards Institute Incorporated Dba American National Standards Institute · NSN 6240-00-519-2131 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-519-2131 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-519-2131. Primary manufacturer part number: 4557.
Features
  • Lamp,incandescent — FSC 6240
  • Average Life Rating in Hours: 100.0
  • Bulb Style: PAR (PARABOLIC, ALUMINIZED REFLECTOR)
  • Rated Average Life: HOURS
  • Bulb Designator: PAR-64
  • Light Output Rating: 540000.000 BEAM CANDLEPOWER NOMINAL SECOND RATING
  • Light Intensity Distribution Feature: PARABOLIC REFLECTOR
  • Bulb Light Transmission Characteristic: TRANSPARENT
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-519-2131, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is American National Standards Institute Incorporated Dba American National Standards Institute. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-00-519-2131
Primary Part Number4557
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerAmerican National Standards Institute Incorporated Dba American National Standards Institute
StatusACTIVE
Average Life Rating in Hours100.0
Bulb StylePAR (PARABOLIC, ALUMINIZED REFLECTOR)
Rated Average LifeHOURS
Bulb DesignatorPAR-64
Light Output Rating540000.000 BEAM CANDLEPOWER NOMINAL SECOND RATING
Light Intensity Distribution FeaturePARABOLIC REFLECTOR
Bulb Light Transmission CharacteristicTRANSPARENT
Filament Heavy Duty Service RatingNOT RATED
Current Rating for Which Designed14.285 AMPERES MINIMUM AND 35.714 AMPERES MAXIMUM
Light Output Rating100000.000 BEAM CANDLEPOWER NOMINAL FIRST RATING
Wattage Rating400.000 WATTS AND 1000.000 WATTS
Emitted Light CharacteristicCOLORLESS
Filament DesignationCC-8/C-6
Base StyleTHREE SCREW TERMINALS
Features ProvidedHEAT RESISTANT GLASS
Voltage Rating28.000 VOLTS NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2910-00-251-2165 INTERCHANGEABLE
Carburetor,float
4730-00-277-9386166D1 INTERCHANGEABLE
Bushing,pipe
Curtiss-Wright Controls, Inc. Div Actuation Division
6760-01-047-2488 INTERCHANGEABLE
Flash Unit,photographic,repeatin
6640-01-267-56414557 INTERCHANGEABLE
Mold,tissue Embedding
Sakura Finetek U.s.a., Inc. Div Sakura Finetek
1310-01-586-65594557 INTERCHANGEABLE
Cartridge,40 Millimeter
Combined Systems Inc
5340-01-669-06014557 INTERCHANGEABLE
Cover,protective,dust and Moistu
Transhield, Inc.
Cross-Reference Index
Part NumberManufacturer
W-L-50 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
4557 General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
4557 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
4557 Eaton Limited (GBR)
4557 PRIMARY American National Standards Institute Incorporated Dba American National Standards Institute (USA)
4557 Leonardo Uk Ltd (GBR)
Related Parts
2910-00-251-2165INTERCHANGEABLE
CARBURETOR,FLOAT
4730-00-277-9386INTERCHANGEABLE
BUSHING,PIPE
166D1
6760-01-047-2488INTERCHANGEABLE
FLASH UNIT,PHOTOGRAPHIC,REPEATIN
6640-01-267-5641INTERCHANGEABLE
MOLD,TISSUE EMBEDDING
4557
1310-01-586-6559INTERCHANGEABLE
CARTRIDGE,40 MILLIMETER
4557
5340-01-669-0601INTERCHANGEABLE
COVER,PROTECTIVE,DUST AND MOISTU
4557

Frequently Asked Questions

What is NSN 6240-00-519-2131?

NSN 6240-00-519-2131 is a Lamp,incandescent, manufactured by American National Standards Institute Incorporated Dba American National Standards Institute, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-00-519-2131?

NSN 6240-00-519-2131 has 6 cross-referenced part numbers: W-L-50 (Federal Specifications Promulgated by General Services Administration Washington DC), 4557 (General Electric Co Miniature Lamp Products Dept Lighting Business Group), 4557 (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), 4557 (Eaton Limited), 4557 (American National Standards Institute Incorporated Dba American National Standards Institute) and 1 more.

What NSN replaces 6240-00-519-2131?

There are 6 known substitutes for 6240-00-519-2131: 2910-00-251-2165, 4730-00-277-9386, 6760-01-047-2488 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4557?

Key specifications for 4557: Average Life Rating in Hours: 100.0; Bulb Style: PAR (PARABOLIC, ALUMINIZED REFLECTOR); Rated Average Life: HOURS; Bulb Designator: PAR-64. 17 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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