PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

250/R40-1Lamp,incandescent

Zf Industrieantriebe Witten Gmbh · NSN 6240-00-266-6258 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-266-6258 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-266-6258. Primary manufacturer part number: 250/R40-1.
Features
  • Lamp,incandescent — FSC 6240
  • Current Rating for Which Designed: 2.000 AMPERES MINIMUM AND 2.174 AMPERES MAXIMUM
  • Bulb Designator: R-40
  • Light Intensity Distribution Feature: PARABOLIC REFLECTOR
  • Emitted Light Characteristic: INFRARED
  • Base Style: MEDIUM SCREW
  • Bulb Style: R (REFLECTOR)
  • Average Life Rating in Hours: 5000.0
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-266-6258, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Zf Industrieantriebe Witten Gmbh. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6240-00-266-6258
Primary Part Number250/R40-1
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerZf Industrieantriebe Witten Gmbh
StatusCANCELLED
Current Rating for Which Designed2.000 AMPERES MINIMUM AND 2.174 AMPERES MAXIMUM
Bulb DesignatorR-40
Light Intensity Distribution FeaturePARABOLIC REFLECTOR
Emitted Light CharacteristicINFRARED
Base StyleMEDIUM SCREW
Bulb StyleR (REFLECTOR)
Average Life Rating in Hours5000.0
Filament Heavy Duty Service RatingNOT RATED
Wattage Rating250.000 WATTS
Filament DesignationC-9
Rated Average LifeHOURS
Features ProvidedFILAMENT SHIELDING AND HEAT RESISTANT GLASS
Voltage Rating115.000 VOLTS MINIMUM AND 125.000 VOLTS MAXIMUM
Bulb Light Transmission CharacteristicTRANSLUCENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
6240-00-266-625440A15-115-125V INTERCHANGEABLE
Lamp,incandescent
General Electric Company Dba Ge
Cross-Reference Index
Part NumberManufacturer
250/R40-1 Zf Industrieantriebe Witten Gmbh (DEU)
250R40-1 Philips Lighting Co Div of North American Philips Corp (USA)
250R40-1-115-125 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
250R40-1 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
250R40-1 General Electric Company (USA)
Related Parts
6240-00-266-6254INTERCHANGEABLE
LAMP,INCANDESCENT
40A15-115-125V

Frequently Asked Questions

What is NSN 6240-00-266-6258?

NSN 6240-00-266-6258 is a Lamp,incandescent, manufactured by Zf Industrieantriebe Witten Gmbh, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-266-6258?

NSN 6240-00-266-6258 has 5 cross-referenced part numbers: 250/R40-1 (Zf Industrieantriebe Witten Gmbh), 250R40-1 (Philips Lighting Co Div of North American Philips Corp), 250R40-1-115-125 (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), 250R40-1 (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), 250R40-1 (General Electric Company).

What NSN replaces 6240-00-266-6258?

There is 1 known substitute for 6240-00-266-6258: 6240-00-266-6254. Verify interchangeability with system specifications before substitution.

What are the specifications of 250/R40-1?

Key specifications for 250/R40-1: Current Rating for Which Designed: 2.000 AMPERES MINIMUM AND 2.174 AMPERES MAXIMUM; Bulb Designator: R-40; Light Intensity Distribution Feature: PARABOLIC REFLECTOR; Emitted Light Characteristic: INFRARED. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-266-6258 still in active supply?

NSN 6240-00-266-6258 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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