PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2448TDLamp,incandescent

Itt Industries Inc Itt Aerospace Communications Div East · NSN 6240-00-922-5042 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-922-5042 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-922-5042. Primary manufacturer part number: 2448TD.
Features
  • Lamp,incandescent — FSC 6240
  • Filament Designation: C-7A A
  • Average Life Rating in Hours: 5000.0
  • Rated Average Life: HOURS
  • Light Output Rating: 1400.000 END FOOTCANDLES NOMINAL SINGLE RATING
  • Current Rating for Which Designed: 0.050 AMPERES NOMINAL
  • Voltage Rating: 55.000 VOLTS NOMINAL
  • Base Style: TELEPHONE SLIDE NUMBER THREE
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-922-5042, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Itt Industries Inc Itt Aerospace Communications Div East. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 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
NSN6240-00-922-5042
Primary Part Number2448TD
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerItt Industries Inc Itt Aerospace Communications Div East
StatusCANCELLED
Filament DesignationC-7A A
Average Life Rating in Hours5000.0
Rated Average LifeHOURS
Light Output Rating1400.000 END FOOTCANDLES NOMINAL SINGLE RATING
Current Rating for Which Designed0.050 AMPERES NOMINAL
Voltage Rating55.000 VOLTS NOMINAL
Base StyleTELEPHONE SLIDE NUMBER THREE
Bulb DesignatorT-2
Bulb Light Transmission CharacteristicTRANSPARENT
Bulb StyleT (TUBULAR)
Filament Heavy Duty Service RatingNOT RATED
Emitted Light CharacteristicWHITE
Specification/standard Data08108-55C3 MANUFACTURERS STANDARD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5940-00-079-1575826 INTERCHANGEABLE
Terminal Board
Keystone Electronics Corp
6240-00-155-8002SMB528673 INTERCHANGEABLE
Lamp,incandescent
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6675-00-226-7102 INTERCHANGEABLE
Map-O-Graph
6240-00-269-0970 INTERCHANGEABLE
Lamp,incandescent
6240-00-426-1972 INTERCHANGEABLE
Lamp,incandescent
6240-00-539-9770 INTERCHANGEABLE
Lamp,incandescent
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
Cross-Reference Index
Part NumberManufacturer
2448TD Itt Industries Inc Itt Aerospace Communications Div East (USA)
14676A Gte Communication Systems Corp (USA)
55C Gte Products Corp Lighting Products Group (USA)
550090-8 Itt Industries Inc Itt Aerospace Communications Div East (USA)
550090-8 L3harris Technologies, Inc. Dba Harris Corporation (USA)
PL55C Precision Lamp Inc (USA)
C78-393 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
55C3 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
2448TD L3harris Technologies, Inc. Dba Harris Corporation (USA)
D94071A Gte Communication Systems Corp (USA)
LTX55C Lamptronix Co Ltd (USA)
Related Parts
5940-00-079-1575INTERCHANGEABLE
TERMINAL BOARD
826
6240-00-155-8002INTERCHANGEABLE
LAMP,INCANDESCENT
SMB528673
6675-00-226-7102INTERCHANGEABLE
MAP-O-GRAPH
6240-00-269-0970INTERCHANGEABLE
LAMP,INCANDESCENT
6240-00-426-1972INTERCHANGEABLE
LAMP,INCANDESCENT
6240-00-539-9770INTERCHANGEABLE
LAMP,INCANDESCENT
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

Frequently Asked Questions

What is NSN 6240-00-922-5042?

NSN 6240-00-922-5042 is a Lamp,incandescent, manufactured by Itt Industries Inc Itt Aerospace Communications Div East, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-922-5042?

NSN 6240-00-922-5042 has 11 cross-referenced part numbers: 2448TD (Itt Industries Inc Itt Aerospace Communications Div East), 14676A (Gte Communication Systems Corp), 55C (Gte Products Corp Lighting Products Group), 550090-8 (Itt Industries Inc Itt Aerospace Communications Div East), 550090-8 (L3harris Technologies, Inc. Dba Harris Corporation) and 6 more.

What NSN replaces 6240-00-922-5042?

There are 12 known substitutes for 6240-00-922-5042: 5940-00-079-1575, 6240-00-155-8002, 6675-00-226-7102 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2448TD?

Key specifications for 2448TD: Filament Designation: C-7A A; Average Life Rating in Hours: 5000.0; Rated Average Life: HOURS; Light Output Rating: 1400.000 END FOOTCANDLES NOMINAL SINGLE RATING. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-922-5042 still in active supply?

NSN 6240-00-922-5042 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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