PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55A/S8-12VLamp,incandescent

Lamp Industry for Use with Industry Designations and Abbreviations for Lamps · NSN 6240-00-228-8588 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-228-8588 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-228-8588. Primary manufacturer part number: 55A/S8-12V.
Features
  • Lamp,incandescent — FSC 6240
  • Rated Average Life: HOURS
  • Emitted Light Characteristic: WHITE
  • Filament Heavy Duty Service Rating: NOT RATED
  • Features Provided: FILAMENT SHIELDING AND HEAT RESISTANT GLASS
  • Bulb Style: S (STRAIGHT SIDE)
  • Light Center Length: 1.125 INCHES NOMINAL IN
  • Filament Designation: C-8
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-228-8588, 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 13 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-00-228-8588
Primary Part Number55A/S8-12V
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerLamp Industry for Use with Industry Designations and Abbreviations for Lamps
StatusACTIVE
Rated Average LifeHOURS
Emitted Light CharacteristicWHITE
Filament Heavy Duty Service RatingNOT RATED
Features ProvidedFILAMENT SHIELDING AND HEAT RESISTANT GLASS
Bulb StyleS (STRAIGHT SIDE)
Light Center Length1.125 INCHES NOMINAL IN
Filament DesignationC-8
Voltage Rating12.000 VOLTS NOMINAL
Current Rating for Which Designed0.550 AMPERES NOMINAL
Base StyleSINGLE CONTACT CANDELABRA PREFOCUS
Average Life Rating in Hours500.0
Bulb Light Transmission CharacteristicTRANSPARENT
Bulb DesignatorS-8
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6240-00-156-160777AS8-12V INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
6240-00-262-8841 INTERCHANGEABLE
Lamp,incandescent
6240-00-262-8845 INTERCHANGEABLE
Lamp,incandescent
1650-00-652-742012004 INTERCHANGEABLE
Parts Kit,linear Actuating Cylin
Eaton Corp Dba Eaton Aerospace Jackson
5940-00-966-63641200-41 INTERCHANGEABLE
Terminal Board Assembly
Honeywell International Inc. Dba Honeywell Div Aerospace ? Redmond Commercial
5315-01-138-9760 INTERCHANGEABLE
Pin,straight,headed
6240-01-199-2374SK1401-B INTERCHANGEABLE
Lamp,incandescent
Coast Guard Yard Uph
5340-01-486-538112004-1 INTERCHANGEABLE
Bracket,angle
Honeywell International Inc. Dba Honeywell Div Aerospace -Olathe Hums Div
Cross-Reference Index
Part NumberManufacturer
120041 United States Coast Guard Dba U.s.c.g. Sflc Div Surface Forces Logistics Center (sflc) (USA)
55A/S8-12V PRIMARY Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
Related Parts
6240-00-156-1607INTERCHANGEABLE
LAMP,INCANDESCENT
77AS8-12V
6240-00-262-8841INTERCHANGEABLE
LAMP,INCANDESCENT
6240-00-262-8845INTERCHANGEABLE
LAMP,INCANDESCENT
1650-00-652-7420INTERCHANGEABLE
PARTS KIT,LINEAR ACTUATING CYLIN
12004
5940-00-966-6364INTERCHANGEABLE
TERMINAL BOARD ASSEMBLY
1200-41
5315-01-138-9760INTERCHANGEABLE
PIN,STRAIGHT,HEADED
6240-01-199-2374INTERCHANGEABLE
LAMP,INCANDESCENT
SK1401-B
5340-01-486-5381INTERCHANGEABLE
BRACKET,ANGLE
12004-1

Frequently Asked Questions

What is NSN 6240-00-228-8588?

NSN 6240-00-228-8588 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 6240-00-228-8588?

NSN 6240-00-228-8588 has 2 cross-referenced part numbers: 120041 (United States Coast Guard Dba U.s.c.g. Sflc Div Surface Forces Logistics Center (sflc)), 55A/S8-12V (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps).

What NSN replaces 6240-00-228-8588?

There are 8 known substitutes for 6240-00-228-8588: 6240-00-156-1607, 6240-00-262-8841, 6240-00-262-8845 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55A/S8-12V?

Key specifications for 55A/S8-12V: Rated Average Life: HOURS; Emitted Light Characteristic: WHITE; Filament Heavy Duty Service Rating: NOT RATED; Features Provided: FILAMENT SHIELDING AND HEAT RESISTANT GLASS. 14 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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