PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

257Lamp,incandescent

Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company · NSN 6240-00-944-1267 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-944-1267 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-944-1267. Primary manufacturer part number: 257.
Features
  • Lamp,incandescent — FSC 6240
  • Light Output Rating: 1.600 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
  • Specification/standard Data: 08108-257 MANUFACTURERS STANDARD
  • Filament Heavy Duty Service Rating: NOT RATED
  • Voltage Rating: 14.000 VOLTS NOMINAL
  • Wattage Rating: 3.780 WATTS
  • Current Rating for Which Designed: 0.270 AMPERES NOMINAL
  • Light Center Length: 0.630 INCHES NOMINAL IN
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-944-1267, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-00-944-1267
Primary Part Number257
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerPhilips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company
StatusACTIVE
Light Output Rating1.600 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
Specification/standard Data08108-257 MANUFACTURERS STANDARD
Filament Heavy Duty Service RatingNOT RATED
Voltage Rating14.000 VOLTS NOMINAL
Wattage Rating3.780 WATTS
Current Rating for Which Designed0.270 AMPERES NOMINAL
Light Center Length0.630 INCHES NOMINAL IN
Emitted Light CharacteristicCOLORLESS
Average Life Rating in Hours500.0
Bulb StyleG (GLOBULAR)
Base StyleMINIATURE BAYONET
Rated Average LifeHOURS
Filament DesignationC-2R
Bulb DesignatorG-4 1/2
Bulb Light Transmission CharacteristicTRANSPARENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-021-591213K10 INTERCHANGEABLE
Screw,cap,hexagon Head
Briggs and Stratton Corp
5935-00-043-2332257 INTERCHANGEABLE
Jack,telephone
Birnbach Co Inc
5977-00-052-4761XA-10103C INTERCHANGEABLE
Holder,electrical Contact Brush
Conductix Inc Div Conductix Wampfler
5920-00-142-7439BK-S-8002-1X-R INTERCHANGEABLE
Fuseholder,block
Cooper Bussmann, Llc Dba Cooper Industries
3460-00-187-8674 INTERCHANGEABLE
Wheel,abrasive
5940-00-235-798701-1008-1-0210 INTERCHANGEABLE
Post,binding,electrical
Concord Electronics, Inc.
9540-00-251-2620 INTERCHANGEABLE
Angle,structural
5340-00-598-5078257 INTERCHANGEABLE
Plug,expansion
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
6625-00-668-6716 INTERCHANGEABLE
Ammeter
5975-00-681-0545257 INTERCHANGEABLE
Junction Box
Raco, a Division of Hubbell Incorporated(delaware)
Cross-Reference Index
Part NumberManufacturer
257 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
3998 Hobbs Corp (USA)
257 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
245822 Essex Industries, Inc. Dba Essex Industries (USA)
S-257 Shokai Far East, Ltd. (USA)
PL257 Precision Lamp Inc (USA)
3201474 Chrysler Corp Engine and Components Sales Diversified Products Div (USA)
LTX257 Lamptronix Co Ltd (USA)
87-0100 Finnigan Corporation (USA)
Related Parts
5305-00-021-5912INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
13K10
5935-00-043-2332INTERCHANGEABLE
JACK,TELEPHONE
257
5977-00-052-4761INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
XA-10103C
5920-00-142-7439INTERCHANGEABLE
FUSEHOLDER,BLOCK
BK-S-8002-1X-R
3460-00-187-8674INTERCHANGEABLE
WHEEL,ABRASIVE
5940-00-235-7987INTERCHANGEABLE
POST,BINDING,ELECTRICAL
01-1008-1-0210
9540-00-251-2620INTERCHANGEABLE
ANGLE,STRUCTURAL
5340-00-598-5078INTERCHANGEABLE
PLUG,EXPANSION
257
6625-00-668-6716INTERCHANGEABLE
AMMETER
5975-00-681-0545INTERCHANGEABLE
JUNCTION BOX
257
5325-00-682-1762INTERCHANGEABLE
RING,RETAINING
6680-00-684-1266INTERCHANGEABLE
METER,FLUID FLOW INDICATING,DIFF
17XIXXX0200A5AAXXX01

Frequently Asked Questions

What is NSN 6240-00-944-1267?

NSN 6240-00-944-1267 is a Lamp,incandescent, manufactured by Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-00-944-1267?

NSN 6240-00-944-1267 has 9 cross-referenced part numbers: 257 (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company), 3998 (Hobbs Corp), 257 (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), 245822 (Essex Industries, Inc. Dba Essex Industries), S-257 (Shokai Far East, Ltd.) and 4 more.

What NSN replaces 6240-00-944-1267?

There are 12 known substitutes for 6240-00-944-1267: 5305-00-021-5912, 5935-00-043-2332, 5977-00-052-4761 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 257?

Key specifications for 257: Light Output Rating: 1.600 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING; Specification/standard Data: 08108-257 MANUFACTURERS STANDARD; Filament Heavy Duty Service Rating: NOT RATED; Special Features: FLASHER LAMP. 17 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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