PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WL50Lamp,incandescent

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 6240-00-155-7920 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-155-7920 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-155-7920. Primary manufacturer part number: WL50.
Features
  • Lamp,incandescent — FSC 6240
  • Bulb Style: PAR (PARABOLIC, ALUMINIZED REFLECTOR)
  • Rated Average Life: HOURS
  • Filament Heavy Duty Service Rating: NOT RATED
  • Light Intensity Distribution Feature: PARABOLIC REFLECTOR
  • Voltage Rating: 13.000 VOLTS NOMINAL
  • Light Output Rating: 220000.000 BEAM CANDLEPOWER NOMINAL SINGLE RATING
  • 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 6240-00-155-7920, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 15 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-00-155-7920
Primary Part NumberWL50
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Bulb StylePAR (PARABOLIC, ALUMINIZED REFLECTOR)
Rated Average LifeHOURS
Filament Heavy Duty Service RatingNOT RATED
Light Intensity Distribution FeaturePARABOLIC REFLECTOR
Voltage Rating13.000 VOLTS NOMINAL
Light Output Rating220000.000 BEAM CANDLEPOWER NOMINAL SINGLE RATING
Bulb Light Transmission CharacteristicTRANSPARENT
Emitted Light CharacteristicCOLORLESS
Bulb DesignatorPAR-46
Average Life Rating in Hours25.0
Base StyleTWO SCREW TERMINALS
Features ProvidedFILAMENT SHIELDING AND HEAT RESISTANT GLASS
Current Rating for Which Designed19.231 AMPERES NOMINAL
Wattage Rating250.000 WATTS
Filament DesignationC-2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-006-4685 INTERCHANGEABLE
Transformer,power
5920-00-284-9206 INTERCHANGEABLE
Fuseholder,block
5315-00-320-81674522 INTERCHANGEABLE
Pin,straight,headed
Lockheed Martin Corp
3020-00-454-78844522 INTERCHANGEABLE
Pulley,groove
Thompson Emery Machine & Supply Co
5910-00-544-7087 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
5120-00-624-3191DLN4522 INTERCHANGEABLE
Pusher,fuel Nozzle
Collins Engine Nozzles, Inc
6220-00-929-861250502 INTERCHANGEABLE
Stop Light-Taillight,vehicular
Grote Industries Inc Dba Grote Manufacturing Co Div Military Products
4730-00-957-83864522 INTERCHANGEABLE
Strainer Element,sediment
Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
5930-00-990-9006 INTERCHANGEABLE
Switch,truck Fire F
3110-01-030-8314 INTERCHANGEABLE
Bearing,roller,needle
Cross-Reference Index
Part NumberManufacturer
WL50 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
4522 General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
4522 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
4522/4522-1 UNIT Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
4522 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
MS25241-4522 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5950-00-006-4685INTERCHANGEABLE
TRANSFORMER,POWER
5920-00-284-9206INTERCHANGEABLE
FUSEHOLDER,BLOCK
5315-00-320-8167INTERCHANGEABLE
PIN,STRAIGHT,HEADED
4522
3020-00-454-7884INTERCHANGEABLE
PULLEY,GROOVE
4522
5910-00-544-7087INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
5120-00-624-3191INTERCHANGEABLE
PUSHER,FUEL NOZZLE
DLN4522
6220-00-929-8612INTERCHANGEABLE
STOP LIGHT-TAILLIGHT,VEHICULAR
50502
4730-00-957-8386INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
4522
5930-00-990-9006INTERCHANGEABLE
SWITCH,TRUCK FIRE F
3110-01-030-8314INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
3030-01-085-7819INTERCHANGEABLE
BELT,V
22760
6850-01-210-4275INTERCHANGEABLE
TONER AND DISPERSANT KIT
4522

Frequently Asked Questions

What is NSN 6240-00-155-7920?

NSN 6240-00-155-7920 is a Lamp,incandescent, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-00-155-7920?

NSN 6240-00-155-7920 has 6 cross-referenced part numbers: WL50 (Federal Specifications Promulgated by General Services Administration Washington DC), 4522 (General Electric Co Miniature Lamp Products Dept Lighting Business Group), 4522 (American National Standards Institute Incorporated Dba American National Standards Institute), 4522/4522-1 UNIT (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company), 4522 (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps) and 1 more.

What NSN replaces 6240-00-155-7920?

There are 12 known substitutes for 6240-00-155-7920: 5950-00-006-4685, 5920-00-284-9206, 5315-00-320-8167 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of WL50?

Key specifications for WL50: Bulb Style: PAR (PARABOLIC, ALUMINIZED REFLECTOR); Rated Average Life: HOURS; Filament Heavy Duty Service Rating: NOT RATED; Light Intensity Distribution Feature: PARABOLIC REFLECTOR. 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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