PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

04100Lamp,fiber Optic

Welch Allyn, Inc. · NSN 6540-01-190-4383 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-190-4383 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-190-4383. Primary manufacturer part number: 04100.
Features
  • Lamp,fiber Optic — FSC 6540
  • General Characteristics Item Description: WELCH ALLEN DESIGN; HALOGEN REPLACEMENT LAMP; CLEAR,WHITE BULB; 1-1/4 IN. LG; 14 VOLTS; 30 WATTS; 100P HRS EXPECTANCY; SELF CLEANSING; USED W/HALOGEN EXAM LIGHT; ESSENTIAL FOR MORE EFFECTIVE AND FASTER EXAMS AND MORE ACCURATE DIAGNOSES IN
  • 2 verified cross-references
  • Primary manufacturer: Welch Allyn, Inc.
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,fiber Optic, cataloged under National Stock Number 6540-01-190-4383, is classified within Federal Supply Class 6540 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Welch Allyn, Inc.. 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6540-01-190-4383
Primary Part Number04100
Item NameLamp,fiber Optic
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerWelch Allyn, Inc.
StatusACTIVE
General Characteristics Item DescriptionWELCH ALLEN DESIGN; HALOGEN REPLACEMENT LAMP; CLEAR,WHITE BULB; 1-1/4 IN. LG; 14 VOLTS; 30 WATTS; 100P HRS EXPECTANCY; SELF CLEANSING; USED W/HALOGEN EXAM LIGHT; ESSENTIAL FOR MORE EFFECTIVE AND FASTER EXAMS AND MORE ACCURATE DIAGNOSES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 1
5133-01-046-2895 INTERCHANGEABLE
Drill,twist
Cross-Reference Index
Part NumberManufacturer
04100 PRIMARY Welch Allyn, Inc. (USA)
04100 Welch Allyn Holdings, Inc. (USA)
Related Parts
5133-01-046-2895INTERCHANGEABLE
DRILL,TWIST

Frequently Asked Questions

What is NSN 6540-01-190-4383?

NSN 6540-01-190-4383 is a Lamp,fiber Optic, manufactured by Welch Allyn, Inc., classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-190-4383?

NSN 6540-01-190-4383 has 2 cross-referenced part numbers: 04100 (Welch Allyn, Inc.), 04100 (Welch Allyn Holdings, Inc.).

What NSN replaces 6540-01-190-4383?

There is 1 known substitute for 6540-01-190-4383: 5133-01-046-2895. Verify interchangeability with system specifications before substitution.

What are the specifications of 04100?

Key specifications for 04100: General Characteristics Item Description: WELCH ALLEN DESIGN; HALOGEN REPLACEMENT LAMP; CLEAR,WHITE BULB; 1-1/4 IN. LG; 14 VOLTS; 30 WATTS; 100P HRS EXPECTANCY; SELF CLEANSING; USED W/HALOGEN EXAM LIGHT; ESSENTIAL FOR MORE EFFECTIVE AND FASTER EXAMS AND MORE ACCURATE DIAGNOSES IN; Part Name Assigned by Controlling Agency: LAMP FIBER OPTIC WELCH ALLEN HALOGEN REPLACEMENT LAMP 14V 30W V. 2 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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