PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

73300Extension Cord,ophthalmoscope

Welch Allyn, Inc. · NSN 6540-01-558-7094 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-558-7094 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-558-7094. Primary manufacturer part number: 73300.
Features
  • Extension Cord,ophthalmoscope — FSC 6540
  • 3 verified cross-references
  • Primary manufacturer: Welch Allyn, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Extension Cord,ophthalmoscope, cataloged under National Stock Number 6540-01-558-7094, 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 3 commercial cross-references from 3 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
NSN6540-01-558-7094
Primary Part Number73300
Item NameExtension Cord,ophthalmoscope
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerWelch Allyn, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
3110-00-156-79435213FM1TX9 INTERCHANGEABLE
Bearing,ball,annular
Nsk Corp Bearing Div
2540-00-228-7592300959R92 INTERCHANGEABLE
Arm,windshield Wiper
Payhauler Corp
5930-00-274-51465513 INTERCHANGEABLE
Switch,toggle
Cole Hersee Company
3030-00-274-6450127 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
3110-00-554-6035 INTERCHANGEABLE
Bearing,ball,annular
6635-00-633-3498700300 INTERCHANGEABLE
Test Set,cable Tension
Hydratight Operations Inc
3895-00-891-1605 INTERCHANGEABLE
Needle
4810-01-078-420810007887 INTERCHANGEABLE
Valve Stem Assembly
Avox Systems Inc Dba Avox Systems Inc
5950-01-192-7040 INTERCHANGEABLE
Reactor
5915-01-210-2398551-3 INTERCHANGEABLE
Filter,band Pass
Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc
Cross-Reference Index
Part NumberManufacturer
5513 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
73300 PRIMARY Welch Allyn, Inc. (USA)
6540NCM072070 Defense Medical Standardization Board (USA)
Related Parts
3110-00-156-7943INTERCHANGEABLE
BEARING,BALL,ANNULAR
5213FM1TX9
2540-00-228-7592INTERCHANGEABLE
ARM,WINDSHIELD WIPER
300959R92
5930-00-274-5146INTERCHANGEABLE
SWITCH,TOGGLE
5513
3030-00-274-6450INTERCHANGEABLE
BELT,V
127
3110-00-554-6035INTERCHANGEABLE
BEARING,BALL,ANNULAR
6635-00-633-3498INTERCHANGEABLE
TEST SET,CABLE TENSION
700300
3895-00-891-1605INTERCHANGEABLE
NEEDLE
4810-01-078-4208INTERCHANGEABLE
VALVE STEM ASSEMBLY
10007887
5950-01-192-7040INTERCHANGEABLE
REACTOR
5915-01-210-2398INTERCHANGEABLE
FILTER,BAND PASS
551-3
5998-01-267-5080INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5513
4310-01-282-7622INTERCHANGEABLE
HOUSING,AIR COMPRESSOR
5513-002

Frequently Asked Questions

What is NSN 6540-01-558-7094?

NSN 6540-01-558-7094 is a Extension Cord,ophthalmoscope, manufactured by Welch Allyn, Inc., classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-558-7094?

NSN 6540-01-558-7094 has 3 cross-referenced part numbers: 5513 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 73300 (Welch Allyn, Inc.), 6540NCM072070 (Defense Medical Standardization Board).

What NSN replaces 6540-01-558-7094?

There are 12 known substitutes for 6540-01-558-7094: 3110-00-156-7943, 2540-00-228-7592, 5930-00-274-5146 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 73300?

Key specifications for 73300: Special Features: EXTENSION CORD; LENGTH: 8 FT; FOR USE WITH END ITEM BINOCULAR INDIRECT OPHTHALMOSCOPE W/ DIFFUSER AND YELLOW FILTER, NSN 6540-01-557-4415 FT; End Item Identification: 6540-01-557-4415; Part Name Assigned by Controlling Agency: EXTENSION CORD 8 FT BINOCULAR INDIRECT OPHTHALMOSCOPE FT. 3 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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