PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

400273Lamp,cartridge

Tfx Fiberoptics · NSN 6240-01-443-8734 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-443-8734 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-443-8734. Primary manufacturer part number: 400273.
Features
  • Lamp,cartridge — FSC 6240
  • FSC Application Data: LIGHT,ENDOSCOPIC INSTRUMENT,FIBER OPTIC
  • 2 verified cross-references
  • Primary manufacturer: Tfx Fiberoptics
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,cartridge, cataloged under National Stock Number 6240-01-443-8734, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Tfx Fiberoptics. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-443-8734
Primary Part Number400273
Item NameLamp,cartridge
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerTfx Fiberoptics
StatusACTIVE
FSC Application DataLIGHT,ENDOSCOPIC INSTRUMENT,FIBER OPTIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2990-00-073-0019 INTERCHANGEABLE
Governor,gasoline Engine
5895-00-627-39177733244G1 INTERCHANGEABLE
Amplifier
General Electric Company
9540-01-228-487240-010-37 INTERCHANGEABLE
Beam,structural
Bell Textron Inc
Cross-Reference Index
Part NumberManufacturer
400273 PRIMARY Tfx Fiberoptics (USA)
REPAIR PART Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
Related Parts
2990-00-073-0019INTERCHANGEABLE
GOVERNOR,GASOLINE ENGINE
5895-00-627-3917INTERCHANGEABLE
AMPLIFIER
7733244G1
9540-01-228-4872INTERCHANGEABLE
BEAM,STRUCTURAL
40-010-37

Frequently Asked Questions

What is NSN 6240-01-443-8734?

NSN 6240-01-443-8734 is a Lamp,cartridge, manufactured by Tfx Fiberoptics, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-443-8734?

NSN 6240-01-443-8734 has 2 cross-referenced part numbers: 400273 (Tfx Fiberoptics), REPAIR PART (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia).

What NSN replaces 6240-01-443-8734?

There are 3 known substitutes for 6240-01-443-8734: 2990-00-073-0019, 5895-00-627-3917, 9540-01-228-4872. Verify interchangeability with system specifications before substitution.

What are the specifications of 400273?

Key specifications for 400273: FSC Application Data: LIGHT,ENDOSCOPIC INSTRUMENT,FIBER OPTIC; Special Features: USE WITH HALOGEN LAMP; TYPE DNF21VAC; 150 WATTS; End Item Identification: 6515-01-435-1572. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com