PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12821Ophthalmoscope

Welch Allyn Protocol Inc Dba Welch Allyn Monitoring Div Monitoring Division · NSN 6540-01-612-9484 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-612-9484 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-612-9484. Primary manufacturer part number: 12821.
Features
  • Ophthalmoscope — FSC 6540
  • Design Designation: WELCH ALLYN
  • Cord Handle: PROVIDED
  • Carrying Case: PROVIDED
  • 1 verified cross-reference
  • Primary manufacturer: Welch Allyn Protocol Inc Dba Welch Allyn Monitoring Div Monitoring Division
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ophthalmoscope, cataloged under National Stock Number 6540-01-612-9484, 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 Protocol Inc Dba Welch Allyn Monitoring Div Monitoring Division. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6540-01-612-9484
Primary Part Number12821
Item NameOphthalmoscope
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerWelch Allyn Protocol Inc Dba Welch Allyn Monitoring Div Monitoring Division
StatusACTIVE
Design DesignationWELCH ALLYN
Cord HandlePROVIDED
Carrying CasePROVIDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5340-00-052-1788 INTERCHANGEABLE
Handle,bow
6105-00-240-9993211766 INTERCHANGEABLE
Motor,alternating Current
Naval Ship Systems Command
5360-00-286-3662F3466 INTERCHANGEABLE
Spring,helical,compression
Purolator Products Co Div Motor Components, Llc
2815-00-923-5099BM65239 INTERCHANGEABLE
Crankshaft,engine
Cummins Inc.
6150-01-173-5156012821-0001 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5355-01-329-5502 INTERCHANGEABLE
Knob
2590-01-371-283312821 INTERCHANGEABLE
Bracket,vehicular Components
DP Manufacturing Inc.
6150-01-589-976512821 INTERCHANGEABLE
Cable Assembly,power,electrical
Generac Mobile Products, Llc
6625-01-653-896112821 INTERCHANGEABLE
Voltmeter
West Marine Products Inc Dba Port Supply
Cross-Reference Index
Part NumberManufacturer
12821 Welch Allyn Protocol Inc Dba Welch Allyn Monitoring Div Monitoring Division (USA)
Related Parts
5340-00-052-1788INTERCHANGEABLE
HANDLE,BOW
6105-00-240-9993INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
211766
5360-00-286-3662INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
F3466
2815-00-923-5099INTERCHANGEABLE
CRANKSHAFT,ENGINE
BM65239
6150-01-173-5156INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
012821-0001
5355-01-329-5502INTERCHANGEABLE
KNOB
2590-01-371-2833INTERCHANGEABLE
BRACKET,VEHICULAR COMPONENTS
12821
6150-01-589-9765INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
12821
6625-01-653-8961INTERCHANGEABLE
VOLTMETER
12821

Frequently Asked Questions

What is NSN 6540-01-612-9484?

NSN 6540-01-612-9484 is a Ophthalmoscope, manufactured by Welch Allyn Protocol Inc Dba Welch Allyn Monitoring Div Monitoring Division, classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-612-9484?

NSN 6540-01-612-9484 has 1 cross-referenced part number: 12821 (Welch Allyn Protocol Inc Dba Welch Allyn Monitoring Div Monitoring Division).

What NSN replaces 6540-01-612-9484?

There are 9 known substitutes for 6540-01-612-9484: 5340-00-052-1788, 6105-00-240-9993, 5360-00-286-3662 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12821?

Key specifications for 12821: Design Designation: WELCH ALLYN; Cord Handle: PROVIDED; Part Name Assigned by Controlling Agency: POCKETSCOPE OPHTHALMOSCOPE; Carrying Case: PROVIDED. 4 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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