PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21279Lamp,fluorescent

Osram Sylvania Inc · NSN 6240-01-325-2948 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-325-2948 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-325-2948. Primary manufacturer part number: 21279.
Features
  • Lamp,fluorescent — FSC 6240
  • Average Life Rating in Hours: 10000.0
  • Starting Characteristic: PREHEAT
  • Wattage Rating: 5.000 WATTS
  • Rated Average Life: HOURS
  • 2 verified cross-references
  • Primary manufacturer: Osram Sylvania Inc
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,fluorescent, cataloged under National Stock Number 6240-01-325-2948, 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 Inc. Government technical data includes 4 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-325-2948
Primary Part Number21279
Item NameLamp,fluorescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerOsram Sylvania Inc
StatusACTIVE
Average Life Rating in Hours10000.0
Starting CharacteristicPREHEAT
Wattage Rating5.000 WATTS
Rated Average LifeHOURS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3040-00-076-47643006M53P1 INTERCHANGEABLE
Core,flexible Shaft Assembly
General Electric Company
2920-00-367-4231PL527 INTERCHANGEABLE
Plate,stop
United Technologies Corp Electro Systems Inc
3110-00-554-5653 INTERCHANGEABLE
Bearing,ball,annular
6685-00-585-19456092-100 INTERCHANGEABLE
Thermocouple,immersion
Airflo Instrument Company, the Dba Airflo Instrument Co
5330-00-828-973154A50A84 INTERCHANGEABLE
Gasket
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5998-01-098-824321279 INTERCHANGEABLE
Circuit Card Assembly
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5330-01-196-66772127-9 INTERCHANGEABLE
Retainer,packing
Specialty Lighting, Inc Div Specialty Lighting
Cross-Reference Index
Part NumberManufacturer
21279 PRIMARY Osram Sylvania Inc (USA)
PL5/27 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
Related Parts
3040-00-076-4764INTERCHANGEABLE
CORE,FLEXIBLE SHAFT ASSEMBLY
3006M53P1
2920-00-367-4231INTERCHANGEABLE
PLATE,STOP
PL527
3110-00-554-5653INTERCHANGEABLE
BEARING,BALL,ANNULAR
6685-00-585-1945INTERCHANGEABLE
THERMOCOUPLE,IMMERSION
6092-100
5330-00-828-9731INTERCHANGEABLE
GASKET
54A50A84
5998-01-098-8243INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21279
5330-01-196-6677INTERCHANGEABLE
RETAINER,PACKING
2127-9

Frequently Asked Questions

What is NSN 6240-01-325-2948?

NSN 6240-01-325-2948 is a Lamp,fluorescent, manufactured by Osram Sylvania Inc, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-325-2948?

NSN 6240-01-325-2948 has 2 cross-referenced part numbers: 21279 (Osram Sylvania Inc), PL5/27 (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company).

What NSN replaces 6240-01-325-2948?

There are 7 known substitutes for 6240-01-325-2948: 3040-00-076-4764, 2920-00-367-4231, 3110-00-554-5653 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21279?

Key specifications for 21279: Average Life Rating in Hours: 10000.0; Starting Characteristic: PREHEAT; Wattage Rating: 5.000 WATTS; Rated Average Life: HOURS. 4 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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