PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

545760-28Lamp,incandescent

Osram Sylvania Ltd · NSN 6240-00-221-0133 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-221-0133 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-221-0133. Primary manufacturer part number: 545760-28.
Features
  • Lamp,incandescent — FSC 6240
  • Filament Designation: C-13D
  • Average Life Rating in Hours: 50.0
  • Base Style: FOUR PIN INDEXING
  • Burning Position: BASE UP TO HORIZONTAL
  • Current Rating for Which Designed: 4.167 AMPERES NOMINAL
  • Color Temp in Deg Kelvin: 3250.0
  • Bulb Designator: T-6
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-221-0133, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Osram Sylvania Ltd. 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-00-221-0133
Primary Part Number545760-28
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerOsram Sylvania Ltd
StatusACTIVE
Filament DesignationC-13D
Average Life Rating in Hours50.0
Base StyleFOUR PIN INDEXING
Burning PositionBASE UP TO HORIZONTAL
Current Rating for Which Designed4.167 AMPERES NOMINAL
Color Temp in Deg Kelvin3250.0
Bulb DesignatorT-6
Light Center Length1.562 INCHES NOMINAL IN
Voltage Rating120.000 VOLTS NOMINAL
Emitted Light CharacteristicCOLORLESS
Wattage Rating500.000 WATTS
Bulb Light Transmission CharacteristicTRANSPARENT
Rated Average LifeHOURS
Filament Heavy Duty Service RatingNOT RATED
Bulb StyleT (TUBULAR)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6240-00-471-5399C78.1408-1980 INTERCHANGEABLE
Lamp,incandescent
American National Standards Institute Incorporated Dba American National Standards Institute
4730-01-353-76694150-147-007 INTERCHANGEABLE
Manifold,hydraulic System Access
Sun Hydraulics Corporation
Cross-Reference Index
Part NumberManufacturer
BCK General Electric Co Photo Lamp Dept (USA)
BCK Gte Products Corp Sylvania Miniature Lighting Div (USA)
545760-28 PRIMARY Osram Sylvania Ltd (CAN)
BCK American National Standards Institute Incorporated Dba American National Standards Institute (USA)
BCK General Dynamics Mission Systems, Inc. (USA)
WL1192 Calumet Photographic, Inc. (USA)
Related Parts
6240-00-471-5399INTERCHANGEABLE
LAMP,INCANDESCENT
C78.1408-1980
4730-01-353-7669INTERCHANGEABLE
MANIFOLD,HYDRAULIC SYSTEM ACCESS
4150-147-007

Frequently Asked Questions

What is NSN 6240-00-221-0133?

NSN 6240-00-221-0133 is a Lamp,incandescent, manufactured by Osram Sylvania Ltd, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-00-221-0133?

NSN 6240-00-221-0133 has 6 cross-referenced part numbers: BCK (General Electric Co Photo Lamp Dept), BCK (Gte Products Corp Sylvania Miniature Lighting Div), 545760-28 (Osram Sylvania Ltd), BCK (American National Standards Institute Incorporated Dba American National Standards Institute), BCK (General Dynamics Mission Systems, Inc.) and 1 more.

What NSN replaces 6240-00-221-0133?

There are 2 known substitutes for 6240-00-221-0133: 6240-00-471-5399, 4730-01-353-7669. Verify interchangeability with system specifications before substitution.

What are the specifications of 545760-28?

Key specifications for 545760-28: Filament Designation: C-13D; Average Life Rating in Hours: 50.0; Base Style: FOUR PIN INDEXING; Burning Position: BASE UP TO HORIZONTAL. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com