PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

250R40/4Lamp,incandescent

General Electric Company Dba Ge · NSN 6240-00-796-8790 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-796-8790 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-796-8790. Primary manufacturer part number: 250R40/4.
Features
  • Lamp,incandescent — FSC 6240
  • Emitted Light Characteristic: INFRARED
  • Average Life Rating in Hours: 5000.0
  • Current Rating for Which Designed: 0.460 AMPERES MINIMUM AND 0.500 AMPERES MAXIMUM
  • Rated Average Life: HOURS
  • Voltage Rating: 115.000 VOLTS MINIMUM AND 125.000 VOLTS MAXIMUM
  • Bulb Style: R (REFLECTOR)
  • Light Intensity Distribution Feature: INSIDE FROSTED AND REFLECTIVE BOWL
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-796-8790, 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 Electric Company Dba Ge. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 9 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
NSN6240-00-796-8790
Primary Part Number250R40/4
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerGeneral Electric Company Dba Ge
StatusCANCELLED
Emitted Light CharacteristicINFRARED
Average Life Rating in Hours5000.0
Current Rating for Which Designed0.460 AMPERES MINIMUM AND 0.500 AMPERES MAXIMUM
Rated Average LifeHOURS
Voltage Rating115.000 VOLTS MINIMUM AND 125.000 VOLTS MAXIMUM
Bulb StyleR (REFLECTOR)
Light Intensity Distribution FeatureINSIDE FROSTED AND REFLECTIVE BOWL
Bulb DesignatorR-40
Wattage Rating250.000 WATTS
Filament DesignationC-9
Filament Heavy Duty Service RatingNOT RATED
Bulb Light Transmission CharacteristicTRANSLUCENT
Base StyleMEDIUM SCREW SKIRTED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
6610-00-343-9331 INTERCHANGEABLE
Outlet Tube Assy
3120-00-353-94648346 INTERCHANGEABLE
Roller,linear-Rotary Motion
Cummins Inc.
4510-00-400-51448301 INTERCHANGEABLE
Shower-Eye and Face Wash,emergen
Haws Corporation
5305-00-638-8753MS51021-58 INTERCHANGEABLE
Setscrew
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3030-00-893-832617432 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5895-00-921-8260262445-15 INTERCHANGEABLE
Discriminator,electrical Frequen
Raytheon Company Dba Raytheon Co
5340-01-240-2413NAS1786A06-14 INTERCHANGEABLE
Standoff,threaded,spacing
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4820-01-322-51958-346 INTERCHANGEABLE
Valve,reg.special
Matheson Co Div of G D Searle Medical Products
4820-01-346-01168346 INTERCHANGEABLE
Disk,valve
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
5999-01-432-0923 INTERCHANGEABLE
Cap,electrical
Cross-Reference Index
Part NumberManufacturer
250R40-4 General Dynamics Mission Systems, Inc. (USA)
Y2238 Star Manufacturing International Inc. Dba Star Manufacturing (USA)
250R40-4 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
VARIABLE PRICING Dla Aviation Engineering Div Department of Defense (USA)
250R40/4 Continental Electronics Corp (USA)
250R40-4-115V Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
250R40/4 PRIMARY General Electric Company Dba Ge (USA)
8346 Star Manufacturing International Inc. Dba Star Manufacturing (USA)
250R40-4-115125V Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
250R40/4 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
250R40-4 Philips Lighting Co Div of North American Philips Corp (USA)
250R40/4 General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
2S-Y2238 Star Manufacturing International Inc. Dba Star Manufacturing (USA)
Related Parts
6610-00-343-9331INTERCHANGEABLE
OUTLET TUBE ASSY
3120-00-353-9464INTERCHANGEABLE
ROLLER,LINEAR-ROTARY MOTION
8346
4510-00-400-5144INTERCHANGEABLE
SHOWER-EYE AND FACE WASH,EMERGEN
8301
5305-00-638-8753INTERCHANGEABLE
SETSCREW
MS51021-58
3030-00-893-8326INTERCHANGEABLE
BELT,V
17432
5895-00-921-8260INTERCHANGEABLE
DISCRIMINATOR,ELECTRICAL FREQUEN
262445-15
5340-01-240-2413INTERCHANGEABLE
STANDOFF,THREADED,SPACING
NAS1786A06-14
4820-01-322-5195INTERCHANGEABLE
VALVE,REG.SPECIAL
8-346
4820-01-346-0116INTERCHANGEABLE
DISK,VALVE
8346
5999-01-432-0923INTERCHANGEABLE
CAP,ELECTRICAL
5999-01-462-9844INTERCHANGEABLE
CAP,ELECTRICAL
741104-A

Frequently Asked Questions

What is NSN 6240-00-796-8790?

NSN 6240-00-796-8790 is a Lamp,incandescent, manufactured by General Electric Company Dba Ge, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-796-8790?

NSN 6240-00-796-8790 has 13 cross-referenced part numbers: 250R40-4 (General Dynamics Mission Systems, Inc.), Y2238 (Star Manufacturing International Inc. Dba Star Manufacturing), 250R40-4 (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), VARIABLE PRICING (Dla Aviation Engineering Div Department of Defense), 250R40/4 (Continental Electronics Corp) and 8 more.

What NSN replaces 6240-00-796-8790?

There are 11 known substitutes for 6240-00-796-8790: 6610-00-343-9331, 3120-00-353-9464, 4510-00-400-5144 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 250R40/4?

Key specifications for 250R40/4: Emitted Light Characteristic: INFRARED; End Item Identification: GALLEY EQUIPMENT & FOOD SERVICE; TICONDEROGA CLASS CG (47); WASP CLASS LHD; JOINT SURVEILLANCE SYS (JSS)/REGION OPS CTRL CENTER (ROCC); NIMITZ CLASS CVN; FORRESTAL CLASS CV; SIRIUS CLASS T-AFS 8; WHIDBEY ISLAND CLASS LSD; FMS; AIRCRAFT, B-1B; Overall Length: 7.250 INCHES MINIMUM AND 7.375 INCHES MAXIMUM IN; Average Life Rating in Hours: 5000.0. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-796-8790 still in active supply?

NSN 6240-00-796-8790 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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