PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F40/D30/ECOLamp,fluorescent

Osram Sylvania Inc. · NSN 6240-01-479-2840 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-479-2840 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-479-2840. Primary manufacturer part number: F40/D30/ECO.
Features
  • Lamp,fluorescent — FSC 6240
  • Base Style: MEDIUM BIPIN (FLUORESCENT)
  • Bulb Designator: T-12
  • Bulb Style: T (TUBULAR)
  • Wattage Rating: 40.000 WATTS
  • Rated Average Life: HOURS
  • Average Life Rating in Hours: 20000.0
  • Emitted Light Characteristic: WHITE, DESIGN
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,fluorescent, cataloged under National Stock Number 6240-01-479-2840, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-479-2840
Primary Part NumberF40/D30/ECO
Item NameLamp,fluorescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerOsram Sylvania Inc.
StatusACTIVE
Base StyleMEDIUM BIPIN (FLUORESCENT)
Bulb DesignatorT-12
Bulb StyleT (TUBULAR)
Wattage Rating40.000 WATTS
Rated Average LifeHOURS
Average Life Rating in Hours20000.0
Emitted Light CharacteristicWHITE, DESIGN
Starting CharacteristicRAPID
Color Temp in Deg Kelvin3000.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
8145-00-111-318113579 INTERCHANGEABLE
Shipping and Storag
Naval Inventory Control Point
5342-01-176-936810512737 INTERCHANGEABLE
Clamp
General Dynamics Land Systems Canadacorp
3020-01-192-606224521 INTERCHANGEABLE
Gear Rack
Moog Inc. Dba Ampac-Isp Corp
2910-01-214-154924521 INTERCHANGEABLE
Base Assembly
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5998-01-343-556324521 INTERCHANGEABLE
Extender Card,electronic Test
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5915-01-506-52212452-1 INTERCHANGEABLE
Filter,low Pass
Kr Electronics Inc
Cross-Reference Index
Part NumberManufacturer
F40/D30/ECO Osram Sylvania Inc. (USA)
24521 Osram Sylvania Inc. (USA)
Related Parts
8145-00-111-3181INTERCHANGEABLE
SHIPPING AND STORAG
13579
5342-01-176-9368INTERCHANGEABLE
CLAMP
10512737
3020-01-192-6062INTERCHANGEABLE
GEAR RACK
24521
2910-01-214-1549INTERCHANGEABLE
BASE ASSEMBLY
24521
5998-01-343-5563INTERCHANGEABLE
EXTENDER CARD,ELECTRONIC TEST
24521
5915-01-506-5221INTERCHANGEABLE
FILTER,LOW PASS
2452-1

Frequently Asked Questions

What is NSN 6240-01-479-2840?

NSN 6240-01-479-2840 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 6240-01-479-2840?

NSN 6240-01-479-2840 has 2 cross-referenced part numbers: F40/D30/ECO (Osram Sylvania Inc.), 24521 (Osram Sylvania Inc.).

What NSN replaces 6240-01-479-2840?

There are 6 known substitutes for 6240-01-479-2840: 8145-00-111-3181, 5342-01-176-9368, 3020-01-192-6062 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of F40/D30/ECO?

Key specifications for F40/D30/ECO: Base Style: MEDIUM BIPIN (FLUORESCENT); Special Features: DESIGNER 700 ECOLOGIC; CRI 70; LAMP COMPLIES WITH ENERGY POLICY ACT (EPACT); LAMP DESIGNED TO PASS FEDERAL TOXIC CHARACTERISTIC LEACHING PROCEDURE (TCLP) CRITERIA FOR CLASSIFICATION AS NON-HAZARDOUS WASTE IN MOST STATES; Bulb Designator: T-12; Bulb Style: T (TUBULAR). 11 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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