PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F4T5/BLBLamp,fluorescent

General Dynamics Mission Systems, Inc. · NSN 6240-00-319-4549 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-319-4549 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-319-4549. Primary manufacturer part number: F4T5/BLB.
Features
  • Lamp,fluorescent — FSC 6240
  • Emitted Light Characteristic: BLACK, BLUE
  • Base Style: MINIATURE BIPIN (FLUORESCENT)
  • Specification/standard Data: 08108-F4T5/BLB MANUFACTURERS STANDARD
  • Bulb Designator: T-5
  • Bulb Style: T (TUBULAR)
  • Wattage Rating: 4.000 WATTS
  • Rated Average Life: HOURS
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,fluorescent, cataloged under National Stock Number 6240-00-319-4549, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is General Dynamics Mission Systems, Inc.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6240-00-319-4549
Primary Part NumberF4T5/BLB
Item NameLamp,fluorescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerGeneral Dynamics Mission Systems, Inc.
StatusCANCELLED
Emitted Light CharacteristicBLACK, BLUE
Base StyleMINIATURE BIPIN (FLUORESCENT)
Specification/standard Data08108-F4T5/BLB MANUFACTURERS STANDARD
Bulb DesignatorT-5
Bulb StyleT (TUBULAR)
Wattage Rating4.000 WATTS
Rated Average LifeHOURS
Starting CharacteristicPREHEAT
Average Life Rating in Hours6000.0
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4820-00-336-5399TF-4 INTERCHANGEABLE
Stem,fluid Valve
Circor Naval Solutions Llc Dba Warren Pumps
2940-00-843-9824FT1015 INTERCHANGEABLE
Filter Element,fluid
Honeywell International Inc Dba Honeywell Div Consumer Products Group
5975-01-064-5592RT550 INTERCHANGEABLE
Strap,tie Down,electrical Compon
All-States Inc.
3120-01-102-5651TF-4 INTERCHANGEABLE
Bearing,plain,rod End
Morse Industrial Corp Sub of Emerson Electric Co
Cross-Reference Index
Part NumberManufacturer
F4T5/BLB Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
F4T5/BLB Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
F4T5/BLB PRIMARY General Dynamics Mission Systems, Inc. (USA)
2140-0026 Keysight Technologies Inc (USA)
F4T5/BLB Gte Products Corp Sylvania Miniature Lighting Div (USA)
F4T5/BLB PRIMARY General Electric Company Dba Ge (USA)
F4T5/BLB Marvel Lamp Co Inc (USA)
6240PL0613125 Jednolity Indeks Materialowy - Uniform Material Index (POL)
724553-3 Naval Ship Systems Command (USA)
2140-0026 Hewlett-Packard Company Dba HP (USA)
P-73138-7 Spectronics Corporation (USA)
2140-0026 Keysight Technologies, Inc. (USA)
TF4 Gates George W Co Inc (USA)
Related Parts
4820-00-336-5399INTERCHANGEABLE
STEM,FLUID VALVE
TF-4
2940-00-843-9824INTERCHANGEABLE
FILTER ELEMENT,FLUID
FT1015
5975-01-064-5592INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
RT550
3120-01-102-5651INTERCHANGEABLE
BEARING,PLAIN,ROD END
TF-4

Frequently Asked Questions

What is NSN 6240-00-319-4549?

NSN 6240-00-319-4549 is a Lamp,fluorescent, manufactured by General Dynamics Mission Systems, Inc., classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-319-4549?

NSN 6240-00-319-4549 has 13 cross-referenced part numbers: F4T5/BLB (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company), F4T5/BLB (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), F4T5/BLB (General Dynamics Mission Systems, Inc.), 2140-0026 (Keysight Technologies Inc), F4T5/BLB (Gte Products Corp Sylvania Miniature Lighting Div) and 8 more.

What NSN replaces 6240-00-319-4549?

There are 4 known substitutes for 6240-00-319-4549: 4820-00-336-5399, 2940-00-843-9824, 5975-01-064-5592 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of F4T5/BLB?

Key specifications for F4T5/BLB: Emitted Light Characteristic: BLACK, BLUE; Base Style: MINIATURE BIPIN (FLUORESCENT); Specification/standard Data: 08108-F4T5/BLB MANUFACTURERS STANDARD; Bulb Designator: T-5. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-319-4549 still in active supply?

NSN 6240-00-319-4549 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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