PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6ALamp,incandescent

Shelly Associates Inc. · NSN 6240-00-426-1972 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-426-1972 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-426-1972. Primary manufacturer part number: 6A.
Features
  • Lamp,incandescent — FSC 6240
  • Rated Average Life: HOURS
  • Average Life Rating in Hours: 15000.0
  • Base Style: TELEPHONE SLIDE NUMBER THREE
  • Specification/standard Data: 08108-6A3 MANUFACTURERS STANDARD
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Emitted Light Characteristic: WHITE
  • Filament Heavy Duty Service Rating: NOT RATED
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-426-1972, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Shelly Associates Inc.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6240-00-426-1972
Primary Part Number6A
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerShelly Associates Inc.
StatusCANCELLED
Rated Average LifeHOURS
Average Life Rating in Hours15000.0
Base StyleTELEPHONE SLIDE NUMBER THREE
Specification/standard Data08108-6A3 MANUFACTURERS STANDARD
Bulb Light Transmission CharacteristicTRANSPARENT
Emitted Light CharacteristicWHITE
Filament Heavy Duty Service RatingNOT RATED
Bulb DesignatorT-2
Bulb StyleT (TUBULAR)
Light Output Rating510.000 END FOOTCANDLES NOMINAL SINGLE RATING
Voltage Rating6.000 VOLTS NOMINAL
Current Rating for Which Designed0.140 AMPERES NOMINAL
Filament DesignationC-2V V
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6240-00-155-8002SMB528673 INTERCHANGEABLE
Lamp,incandescent
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5960-00-188-8599 INTERCHANGEABLE
Electron Tube
6240-00-269-0970 INTERCHANGEABLE
Lamp,incandescent
6240-00-539-9770 INTERCHANGEABLE
Lamp,incandescent
5960-00-617-8615 INTERCHANGEABLE
Electron Tube
6240-00-715-10392450-00032 INTERCHANGEABLE
Lamp,incandescent
W. & O. Supply, Inc. Dba Emi Div Emi
6240-00-715-1040 INTERCHANGEABLE
Lamp,incandescent
6240-00-715-10466C3 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
6240-00-740-880060A3 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
6240-00-740-8901 INTERCHANGEABLE
Lamp,incandescent
Cross-Reference Index
Part NumberManufacturer
6A Shelly Associates Inc. (USA)
6A3 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
PL6A Precision Lamp Inc (USA)
6A Gte Products Corp Lighting Products Group (USA)
6A3 Gte Products Corp Lighting Products Group (USA)
LTX6A Lamptronix Co Ltd (USA)
C78-393 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
DB58 Gte Communication Systems Corp (USA)
Related Parts
6240-00-155-8002INTERCHANGEABLE
LAMP,INCANDESCENT
SMB528673
5960-00-188-8599INTERCHANGEABLE
ELECTRON TUBE
6240-00-269-0970INTERCHANGEABLE
LAMP,INCANDESCENT
6240-00-539-9770INTERCHANGEABLE
LAMP,INCANDESCENT
5960-00-617-8615INTERCHANGEABLE
ELECTRON TUBE
6240-00-715-1039INTERCHANGEABLE
LAMP,INCANDESCENT
2450-00032
6240-00-715-1040INTERCHANGEABLE
LAMP,INCANDESCENT
6240-00-715-1046INTERCHANGEABLE
LAMP,INCANDESCENT
6C3
6240-00-740-8800INTERCHANGEABLE
LAMP,INCANDESCENT
60A3
6240-00-740-8901INTERCHANGEABLE
LAMP,INCANDESCENT
6240-00-789-3369INTERCHANGEABLE
LAMP,INCANDESCENT
6240-00-789-3370INTERCHANGEABLE
LAMP,INCANDESCENT

Frequently Asked Questions

What is NSN 6240-00-426-1972?

NSN 6240-00-426-1972 is a Lamp,incandescent, manufactured by Shelly Associates Inc., classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-426-1972?

NSN 6240-00-426-1972 has 8 cross-referenced part numbers: 6A (Shelly Associates Inc.), 6A3 (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), PL6A (Precision Lamp Inc), 6A (Gte Products Corp Lighting Products Group), 6A3 (Gte Products Corp Lighting Products Group) and 3 more.

What NSN replaces 6240-00-426-1972?

There are 12 known substitutes for 6240-00-426-1972: 6240-00-155-8002, 5960-00-188-8599, 6240-00-269-0970 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6A?

Key specifications for 6A: Rated Average Life: HOURS; Average Life Rating in Hours: 15000.0; Base Style: TELEPHONE SLIDE NUMBER THREE; Specification/standard Data: 08108-6A3 MANUFACTURERS STANDARD. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-426-1972 still in active supply?

NSN 6240-00-426-1972 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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