PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4550Lamp,incandescent

Lamp Industry for Use with Industry Designations and Abbreviations for Lamps · NSN 6240-00-583-3818 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-583-3818 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-583-3818. Primary manufacturer part number: 4550.
Features
  • Lamp,incandescent — FSC 6240
  • Filament Heavy Duty Service Rating: NOT RATED
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Light Intensity Distribution Feature: PARABOLIC REFLECTOR
  • Average Life Rating in Hours: 25.0
  • Voltage Rating: 28.000 VOLTS NOMINAL
  • Emitted Light Characteristic: COLORLESS
  • Filament Designation: CC-6
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-583-3818, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Lamp Industry for Use with Industry Designations and Abbreviations for Lamps. 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
NSN6240-00-583-3818
Primary Part Number4550
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerLamp Industry for Use with Industry Designations and Abbreviations for Lamps
StatusACTIVE
Filament Heavy Duty Service RatingNOT RATED
Bulb Light Transmission CharacteristicTRANSPARENT
Light Intensity Distribution FeaturePARABOLIC REFLECTOR
Average Life Rating in Hours25.0
Voltage Rating28.000 VOLTS NOMINAL
Emitted Light CharacteristicCOLORLESS
Filament DesignationCC-6
Current Rating for Which Designed8.929 AMPERES NOMINAL
Bulb DesignatorPAR-56
Base StyleTWO SCREW TERMINALS
Wattage Rating250.000 WATTS
Bulb StylePAR (PARABOLIC, ALUMINIZED REFLECTOR)
Specification/standard Data08108-4550 MANUFACTURERS STANDARD
Rated Average LifeHOURS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-033-184272687 INTERCHANGEABLE
Seal
Honeywell International Inc. Div Aerospace - Torrance
5935-00-203-498910163-2 INTERCHANGEABLE
Connector,receptacle,electrical
Alliant Techsystems Operations Llc Div Defense Electronic Systems
4910-00-204-3170 INTERCHANGEABLE
Gage,tire Pressure,self-Containe
5999-00-279-8504103001 INTERCHANGEABLE
Clip,electrical
Littelfuse, Inc.
4910-00-449-6579 INTERCHANGEABLE
Gage,tire Pressure,self-Containe
6515-00-488-51114550-01 INTERCHANGEABLE
Intravenous Injection Set
Abbott Laboratories Inc. Div Hospital Products Division
3030-00-528-4620 INTERCHANGEABLE
Belt,v
3455-01-006-092640223 INTERCHANGEABLE
Cutter,milling,end
Niagara Cutter Inc
6220-01-050-8923 INTERCHANGEABLE
Lens,tubular
6625-01-059-8008 INTERCHANGEABLE
Analyzer,spectrum
Cross-Reference Index
Part NumberManufacturer
4550 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
4550 General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
Related Parts
5330-00-033-1842INTERCHANGEABLE
SEAL
72687
5935-00-203-4989INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
10163-2
4910-00-204-3170INTERCHANGEABLE
GAGE,TIRE PRESSURE,SELF-CONTAINE
5999-00-279-8504INTERCHANGEABLE
CLIP,ELECTRICAL
103001
4910-00-449-6579INTERCHANGEABLE
GAGE,TIRE PRESSURE,SELF-CONTAINE
6515-00-488-5111INTERCHANGEABLE
INTRAVENOUS INJECTION SET
4550-01
3030-00-528-4620INTERCHANGEABLE
BELT,V
3455-01-006-0926INTERCHANGEABLE
CUTTER,MILLING,END
40223
6220-01-050-8923INTERCHANGEABLE
LENS,TUBULAR
6625-01-059-8008INTERCHANGEABLE
ANALYZER,SPECTRUM
5315-01-160-0472INTERCHANGEABLE
KEY
2AE933
6625-01-163-5476INTERCHANGEABLE
PROBE,TEST

Frequently Asked Questions

What is NSN 6240-00-583-3818?

NSN 6240-00-583-3818 is a Lamp,incandescent, manufactured by Lamp Industry for Use with Industry Designations and Abbreviations for Lamps, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-00-583-3818?

NSN 6240-00-583-3818 has 2 cross-referenced part numbers: 4550 (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), 4550 (General Electric Co Miniature Lamp Products Dept Lighting Business Group).

What NSN replaces 6240-00-583-3818?

There are 12 known substitutes for 6240-00-583-3818: 5330-00-033-1842, 5935-00-203-4989, 4910-00-204-3170 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4550?

Key specifications for 4550: Filament Heavy Duty Service Rating: NOT RATED; Bulb Light Transmission Characteristic: TRANSPARENT; Light Intensity Distribution Feature: PARABOLIC REFLECTOR; Average Life Rating in Hours: 25.0. 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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