PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F48T12/LW/HO/ALTOLamp,fluorescent

Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company · NSN 6240-01-344-9520 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-344-9520 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-344-9520. Primary manufacturer part number: F48T12/LW/HO/ALTO.
Features
  • Lamp,fluorescent — FSC 6240
  • Base Style: RECESSED DOUBLE CONTACT (FLUORESCENT)
  • Emitted Light Characteristic: WHITE
  • Rated Average Life: HOURS
  • Wattage Rating: 55.000 WATTS
  • Average Life Rating in Hours: 12000.0
  • Starting Characteristic: RAPID
  • Bulb Style: T (TUBULAR)
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,fluorescent, cataloged under National Stock Number 6240-01-344-9520, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6240-01-344-9520
Primary Part NumberF48T12/LW/HO/ALTO
Item NameLamp,fluorescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerPhilips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company
StatusCANCELLED
Base StyleRECESSED DOUBLE CONTACT (FLUORESCENT)
Emitted Light CharacteristicWHITE
Rated Average LifeHOURS
Wattage Rating55.000 WATTS
Average Life Rating in Hours12000.0
Starting CharacteristicRAPID
Bulb StyleT (TUBULAR)
Bulb DesignatorT12HO
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5930-00-335-236711179 INTERCHANGEABLE
Switch Subassembly
National Security Agency
3810-00-463-696937350D INTERCHANGEABLE
Yoke,clutch Adjusting
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5325-00-803-9981 INTERCHANGEABLE
Ring,retaining
6240-00-889-1755ANSI C78.1-78(F48T12/CW/HO/RS) INTERCHANGEABLE
Lamp,fluorescent
American National Standards Institute Incorporated Dba American National Standards Institute
5330-01-017-862311179 INTERCHANGEABLE
Packing,preformed
Setra Systems, Inc. Dba Gems Sensors
5307-01-138-91630304196 INTERCHANGEABLE
Stud
Aaburco Inc
5340-01-263-782211179 INTERCHANGEABLE
Plug,expansion
Brinkley Technology Group Llc Dba Hercules Manufacturing
4320-01-290-5253CA9368-10 INTERCHANGEABLE
Ring,wearing
Air & Liquid Systems Corporation Dba Buffalo Pumps
5331-01-618-661511179 INTERCHANGEABLE
O-Ring
Harley Davidson Motor Co Inc
5310-01-653-973211179 INTERCHANGEABLE
Washer,seal
Circor Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
F48T12/LW/HO/ALTO PRIMARY Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
F48T12/CW/H0 Zf Industrieantriebe Witten Gmbh (DEU)
F48T12/LW/HO/WM General Electric Company Dba Ge (USA)
11179 General Electric Company Dba Ge (USA)
F48T12/LW/HO/WM II General Electric Company Dba Ge (USA)
Related Parts
5930-00-335-2367INTERCHANGEABLE
SWITCH SUBASSEMBLY
11179
3810-00-463-6969INTERCHANGEABLE
YOKE,CLUTCH ADJUSTING
37350D
5325-00-803-9981INTERCHANGEABLE
RING,RETAINING
6240-00-889-1755INTERCHANGEABLE
LAMP,FLUORESCENT
ANSI C78.1-78(F48T12/CW/HO/RS)
5330-01-017-8623INTERCHANGEABLE
PACKING,PREFORMED
11179
5307-01-138-9163INTERCHANGEABLE
STUD
0304196
5340-01-263-7822INTERCHANGEABLE
PLUG,EXPANSION
11179
4320-01-290-5253INTERCHANGEABLE
RING,WEARING
CA9368-10
5331-01-618-6615INTERCHANGEABLE
O-RING
11179
5310-01-653-9732INTERCHANGEABLE
WASHER,SEAL
11179
4730-01-678-2601INTERCHANGEABLE
CLAMP,HOSE
11179

Frequently Asked Questions

What is NSN 6240-01-344-9520?

NSN 6240-01-344-9520 is a Lamp,fluorescent, manufactured by Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-01-344-9520?

NSN 6240-01-344-9520 has 5 cross-referenced part numbers: F48T12/LW/HO/ALTO (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company), F48T12/CW/H0 (Zf Industrieantriebe Witten Gmbh), F48T12/LW/HO/WM (General Electric Company Dba Ge), 11179 (General Electric Company Dba Ge), F48T12/LW/HO/WM II (General Electric Company Dba Ge).

What NSN replaces 6240-01-344-9520?

There are 11 known substitutes for 6240-01-344-9520: 5930-00-335-2367, 3810-00-463-6969, 5325-00-803-9981 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of F48T12/LW/HO/ALTO?

Key specifications for F48T12/LW/HO/ALTO: Base Style: RECESSED DOUBLE CONTACT (FLUORESCENT); Emitted Light Characteristic: WHITE; Rated Average Life: HOURS; Wattage Rating: 55.000 WATTS. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-01-344-9520 still in active supply?

NSN 6240-01-344-9520 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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