PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43300Transilluminator,ophthalmoscope

Welch Allyn, Inc. · NSN 6540-01-552-0696 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-552-0696 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-552-0696. Primary manufacturer part number: 43300.
Features
  • Transilluminator,ophthalmoscope — FSC 6540
  • 4 verified cross-references
  • Primary manufacturer: Welch Allyn, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transilluminator,ophthalmoscope, cataloged under National Stock Number 6540-01-552-0696, 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.. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6540-01-552-0696
Primary Part Number43300
Item NameTransilluminator,ophthalmoscope
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerWelch Allyn, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
Contactor,magnetic
3110-00-151-843443300 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
5915-00-162-426010690834 INTERCHANGEABLE
Phase Shifter,electronic
Us Army Aviation and Missile Command
5905-00-174-1515SA729-1 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Avionics Specialties, Inc.
5999-00-240-4304 INTERCHANGEABLE
Contact,electrical
5325-00-282-5599 INTERCHANGEABLE
Ring,retaining
1030-00-344-5659319030PC4 INTERCHANGEABLE
Packing Assy
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5905-00-665-60828197-12 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Instruments and Flight Research, Inc.
5120-00-690-7328J3752 INTERCHANGEABLE
Wrench,open End Box
The Stanley Works Dba Stanley Proto
5950-00-914-3527 INTERCHANGEABLE
Transformer,power
Cross-Reference Index
Part NumberManufacturer
43300 PRIMARY Welch Allyn, Inc. (USA)
6540NCM071421 Defense Medical Standardization Board (USA)
3752 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
43300 Welch Allyn Protocol Inc Dba Welch Allyn Monitoring Div Monitoring Division (USA)
Related Parts
6110-01-563-6808SUCCESSOR
CONTACTOR,MAGNETIC
3110-00-151-8434INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
43300
5915-00-162-4260INTERCHANGEABLE
PHASE SHIFTER,ELECTRONIC
10690834
5905-00-174-1515INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
SA729-1
5999-00-240-4304INTERCHANGEABLE
CONTACT,ELECTRICAL
5325-00-282-5599INTERCHANGEABLE
RING,RETAINING
1030-00-344-5659INTERCHANGEABLE
PACKING ASSY
319030PC4
5905-00-665-6082INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
8197-12
5120-00-690-7328INTERCHANGEABLE
WRENCH,OPEN END BOX
J3752
5950-00-914-3527INTERCHANGEABLE
TRANSFORMER,POWER
5355-01-015-6849INTERCHANGEABLE
KNOB ASSY
04-3300-011
5935-01-087-7231INTERCHANGEABLE
CONNECTOR ASSEMBLY,ELECTRICAL
3752

Frequently Asked Questions

What is NSN 6540-01-552-0696?

NSN 6540-01-552-0696 is a Transilluminator,ophthalmoscope, manufactured by Welch Allyn, Inc., classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-552-0696?

NSN 6540-01-552-0696 has 4 cross-referenced part numbers: 43300 (Welch Allyn, Inc.), 6540NCM071421 (Defense Medical Standardization Board), 3752 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 43300 (Welch Allyn Protocol Inc Dba Welch Allyn Monitoring Div Monitoring Division).

What NSN replaces 6540-01-552-0696?

There are 12 known substitutes for 6540-01-552-0696: 6110-01-563-6808, 3110-00-151-8434, 5915-00-162-4260 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43300?

Key specifications for 43300: Part Name Assigned by Controlling Agency: TRANSILLUMINATOR 3.5V CURVED V; Special Features: 3.5V CURVED; ALL PURPOSE TRANSILLUINATOR; FOR USE ON OPHTHALMOSCOPE, 6540-01-520-6837 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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