PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

04400Lamp,incandescent

Welch Allyn, Inc. · NSN 6240-01-300-3811 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-300-3811 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-300-3811. Primary manufacturer part number: 04400.
Features
  • Lamp,incandescent — FSC 6240
  • Rated Average Life: HOURS
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Emitted Light Characteristic: NATURAL
  • Bulb Designator: WA044
  • Average Life Rating in Hours: 20.0
  • Voltage Rating: 2.5000 VOLTS NOMINAL
  • 6 verified cross-references
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-01-300-3811, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Welch Allyn, Inc.. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-300-3811
Primary Part Number04400
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerWelch Allyn, Inc.
StatusACTIVE
Rated Average LifeHOURS
Bulb Light Transmission CharacteristicTRANSPARENT
Emitted Light CharacteristicNATURAL
Bulb DesignatorWA044
Average Life Rating in Hours20.0
Voltage Rating2.5000 VOLTS NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5120-00-159-892004400 INTERCHANGEABLE
Wrench,adapter
Levan Enterprises Inc. Dba R F Cook Manufacturing Co
5950-01-280-108211811 INTERCHANGEABLE
Transformer,power
Sora Power Inc. Dba Sigma Division
Cross-Reference Index
Part NumberManufacturer
04400 Orem Medical Corporation (USA)
04400 PRIMARY Welch Allyn, Inc. (USA)
04400 Cardinal Health 200, Llc (USA)
89-3-13-92 MSP Air Force Medical Logistics Office (USA)
04400 Krasity's Medical & Surgical Supply, Inc. Dba Krasity's (USA)
04400 Welch Allyn Holdings, Inc. (USA)
Related Parts
5120-00-159-8920INTERCHANGEABLE
WRENCH,ADAPTER
04400
5950-01-280-1082INTERCHANGEABLE
TRANSFORMER,POWER
11811

Frequently Asked Questions

What is NSN 6240-01-300-3811?

NSN 6240-01-300-3811 is a Lamp,incandescent, manufactured by Welch Allyn, Inc., classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-300-3811?

NSN 6240-01-300-3811 has 6 cross-referenced part numbers: 04400 (Orem Medical Corporation), 04400 (Welch Allyn, Inc.), 04400 (Cardinal Health 200, Llc), 89-3-13-92 MSP (Air Force Medical Logistics Office), 04400 (Krasity's Medical & Surgical Supply, Inc. Dba Krasity's) and 1 more.

What NSN replaces 6240-01-300-3811?

There are 2 known substitutes for 6240-01-300-3811: 5120-00-159-8920, 5950-01-280-1082. Verify interchangeability with system specifications before substitution.

What are the specifications of 04400?

Key specifications for 04400: Rated Average Life: HOURS; Bulb Light Transmission Characteristic: TRANSPARENT; Special Features: CYLINDRICAL BASE SHAPE; DOMED BULB STYLE; .810 O/A LENGTH; .660 CURRENT; .230 O/S DIA.; REPLACEMENT HALOGEN LIGHT FOR OPHTHALMOSCOPE INSTRUMENT; UNIT QTY 6; Emitted Light Characteristic: NATURAL. 7 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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