PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25T8DCLamp,incandescent

Gte Products Corp Sylvania Miniature Lighting Div · NSN 6240-01-335-7727 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-335-7727 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-335-7727. Primary manufacturer part number: 25T8DC.
Features
  • Lamp,incandescent — FSC 6240
  • Filament Designation: C-7A A
  • Emitted Light Characteristic: COLORLESS
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Light Output Rating: 235.000 LUMENS NOMINAL SINGLE RATING
  • Base Style: DOUBLE CONTACT BAYONET CANDELABRA
  • Voltage Rating: 120.000 VOLTS NOMINAL
  • Bulb Style: T (TUBULAR)
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-01-335-7727, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Gte Products Corp Sylvania Miniature Lighting Div. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-335-7727
Primary Part Number25T8DC
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerGte Products Corp Sylvania Miniature Lighting Div
StatusACTIVE
Filament DesignationC-7A A
Emitted Light CharacteristicCOLORLESS
Bulb Light Transmission CharacteristicTRANSPARENT
Light Output Rating235.000 LUMENS NOMINAL SINGLE RATING
Base StyleDOUBLE CONTACT BAYONET CANDELABRA
Voltage Rating120.000 VOLTS NOMINAL
Bulb StyleT (TUBULAR)
Wattage Rating25.000 WATTS
Bulb DesignatorT-8
Filament Heavy Duty Service RatingNOT RATED
Rated Average LifeNOT RATED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-062-1848402363-01 INTERCHANGEABLE
Transformer,power
Bae Systems Controls Inc
6240-00-155-8653 INTERCHANGEABLE
Lamp,incandescent
5136-00-199-671254164 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
5950-00-229-1880 INTERCHANGEABLE
Transformer,power
3950-01-281-5837 INTERCHANGEABLE
Winch,drum,power Operated
6240-01-354-5287375 24V 25W INTERCHANGEABLE
Lamp,incandescent
Perko Inc
6550-01-579-1532696 INTERCHANGEABLE
Control,human Serum
Bio Rad Laboratories Inc Dba Bio Rad Laboratories
Cross-Reference Index
Part NumberManufacturer
25T8DC Lamptronix Co Ltd (USA)
25T8DC General Electric Company Dba Ge (USA)
BC25T8DC Philips Lighting Co Div North American Philips Corp Pobox 6800 Somerset Nj 088756800 (USA)
14741 General Electric Company Dba Ge (USA)
25T8DC PRIMARY Gte Products Corp Sylvania Miniature Lighting Div (USA)
Related Parts
5950-00-062-1848INTERCHANGEABLE
TRANSFORMER,POWER
402363-01
6240-00-155-8653INTERCHANGEABLE
LAMP,INCANDESCENT
5136-00-199-6712INTERCHANGEABLE
TAP,THREAD CUTTING
54164
5950-00-229-1880INTERCHANGEABLE
TRANSFORMER,POWER
3950-01-281-5837INTERCHANGEABLE
WINCH,DRUM,POWER OPERATED
6240-01-354-5287INTERCHANGEABLE
LAMP,INCANDESCENT
375 24V 25W
6550-01-579-1532INTERCHANGEABLE
CONTROL,HUMAN SERUM
696

Frequently Asked Questions

What is NSN 6240-01-335-7727?

NSN 6240-01-335-7727 is a Lamp,incandescent, manufactured by Gte Products Corp Sylvania Miniature Lighting Div, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-335-7727?

NSN 6240-01-335-7727 has 5 cross-referenced part numbers: 25T8DC (Lamptronix Co Ltd), 25T8DC (General Electric Company Dba Ge), BC25T8DC (Philips Lighting Co Div North American Philips Corp Pobox 6800 Somerset Nj 088756800), 14741 (General Electric Company Dba Ge), 25T8DC (Gte Products Corp Sylvania Miniature Lighting Div).

What NSN replaces 6240-01-335-7727?

There are 7 known substitutes for 6240-01-335-7727: 5950-00-062-1848, 6240-00-155-8653, 5136-00-199-6712 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25T8DC?

Key specifications for 25T8DC: Filament Designation: C-7A A; Overall Length: 2.625 INCHES NOMINAL IN; Emitted Light Characteristic: COLORLESS; Bulb Light Transmission Characteristic: TRANSPARENT. 12 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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