PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

308346Lamp,incandescent

International Business Machines Corp Parts Order Center Dept E - 54 · NSN 6240-00-157-3724 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-157-3724 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-157-3724. Primary manufacturer part number: 308346.
Features
  • Lamp,incandescent — FSC 6240
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Filament Heavy Duty Service Rating: NOT RATED
  • Light Output Rating: 2.200 END FOOTCANDLES NOMINAL FIRST RATING
  • Current Rating for Which Designed: 0.045 AMPERES MINIMUM AND 0.060 AMPERES MAXIMUM
  • Rated Average Life: HOURS
  • Bulb Designator: T-2
  • Emitted Light Characteristic: WHITE
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-157-3724, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is International Business Machines Corp Parts Order Center Dept E - 54. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6240-00-157-3724
Primary Part Number308346
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerInternational Business Machines Corp Parts Order Center Dept E - 54
StatusCANCELLED
Bulb Light Transmission CharacteristicTRANSPARENT
Filament Heavy Duty Service RatingNOT RATED
Light Output Rating2.200 END FOOTCANDLES NOMINAL FIRST RATING
Current Rating for Which Designed0.045 AMPERES MINIMUM AND 0.060 AMPERES MAXIMUM
Rated Average LifeHOURS
Bulb DesignatorT-2
Emitted Light CharacteristicWHITE
Voltage Rating55.000 VOLTS NOMINAL
Wattage Rating2.475 WATTS AND 3.300 WATTS
Bulb StyleT (TUBULAR)
Light Output Rating1.100 SPHERICAL CANDLEPOWER NOMINAL SECOND RATING
Average Life Rating in Hours5000.0
Base StyleTELEPHONE SLIDE NUMBER ONE
Specification/standard Data08108-55C1 MANUFACTURERS STANDARD
Filament DesignationC-2F
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
6685-00-058-1016 INTERCHANGEABLE
Pyrometer,indicating
5940-00-080-9872544 INTERCHANGEABLE
Terminal,lug
Zierick Mfg Corp
3110-00-130-551411640528 INTERCHANGEABLE
Bearing,ball,annular
Rbc Bearings Incorporated Div West Trenton Division
5977-00-387-087945ALT8PC17 INTERCHANGEABLE
Holder,electrical Contact Brush
The Dewey Electronics Corporation Div Pitometer Log Division
1650-00-473-05444517 INTERCHANGEABLE
Valve,relief Hydraulic
Pneudraulics, Inc.
5950-00-625-76984517 INTERCHANGEABLE
Coil,radio Frequency
Artted Co Inc
1680-00-686-18604517 INTERCHANGEABLE
Lug Assy,torque Tub
Lockheed Martin Corp
5915-00-893-65994517 INTERCHANGEABLE
Filter,radio Frequency Interfere
Aerocontrolex Group, Inc. Div Talley Actuators
9390-00-933-747911588856 INTERCHANGEABLE
Nonmetallic Channel
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
308346 PRIMARY International Business Machines Corp Parts Order Center Dept E - 54 (USA)
308346 International Business Machines Corporation Dba IBM (USA)
55C1 General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
55C-1 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
C78-391 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
55C1 PRIMARY Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
A2155483 Bendix Corp the (USA)
55C1 General Electric Company Dba Ge (USA)
1377-4997 PRIMARY Messer Llc (USA)
4517 Hose-Mccann Telephone Co, Inc (USA)
Related Parts
6685-00-058-1016INTERCHANGEABLE
PYROMETER,INDICATING
5940-00-080-9872INTERCHANGEABLE
TERMINAL,LUG
544
3110-00-130-5514INTERCHANGEABLE
BEARING,BALL,ANNULAR
11640528
5977-00-387-0879INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
45ALT8PC17
1650-00-473-0544INTERCHANGEABLE
VALVE,RELIEF HYDRAULIC
4517
5950-00-625-7698INTERCHANGEABLE
COIL,RADIO FREQUENCY
4517
1680-00-686-1860INTERCHANGEABLE
LUG ASSY,TORQUE TUB
4517
5915-00-893-6599INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
4517
9390-00-933-7479INTERCHANGEABLE
NONMETALLIC CHANNEL
11588856

Frequently Asked Questions

What is NSN 6240-00-157-3724?

NSN 6240-00-157-3724 is a Lamp,incandescent, manufactured by International Business Machines Corp Parts Order Center Dept E - 54, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-157-3724?

NSN 6240-00-157-3724 has 10 cross-referenced part numbers: 308346 (International Business Machines Corp Parts Order Center Dept E - 54), 308346 (International Business Machines Corporation Dba IBM), 55C1 (General Electric Co Miniature Lamp Products Dept Lighting Business Group), 55C-1 (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company), C78-391 (American National Standards Institute Incorporated Dba American National Standards Institute) and 5 more.

What NSN replaces 6240-00-157-3724?

There are 9 known substitutes for 6240-00-157-3724: 6685-00-058-1016, 5940-00-080-9872, 3110-00-130-5514 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 308346?

Key specifications for 308346: Bulb Light Transmission Characteristic: TRANSPARENT; Filament Heavy Duty Service Rating: NOT RATED; Light Output Rating: 2.200 END FOOTCANDLES NOMINAL FIRST RATING; Current Rating for Which Designed: 0.045 AMPERES MINIMUM AND 0.060 AMPERES MAXIMUM. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-157-3724 still in active supply?

NSN 6240-00-157-3724 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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