PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

198004Ophthalmoscope

Propper Manufacturing Company, Inc. Div Propper Manufacturing Company · NSN 6540-00-935-4058 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-00-935-4058 — this item is cataloged by the U.S. Government under National Stock Number 6540-00-935-4058. Primary manufacturer part number: 198004.
Features
  • Ophthalmoscope — FSC 6540
  • Accessory Components and Quantity: LAMP,2.5 V 0.38 AMP,BAYONET BASE 2 V
  • Cord Handle: NOT PROVIDED
  • Lens Zero Aperture: INCLUDED
  • Lens Positive Diopter Power Range: +2.50 TO 40.00
  • Lens Negative Diopter Power Range: -25.00 TO 0.00
  • Carrying Case: PROVIDED
  • 1 verified cross-reference
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ophthalmoscope, cataloged under National Stock Number 6540-00-935-4058, 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 Propper Manufacturing Company, Inc. Div Propper Manufacturing Company. Government technical data includes 6 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6540-00-935-4058
Primary Part Number198004
Item NameOphthalmoscope
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerPropper Manufacturing Company, Inc. Div Propper Manufacturing Company
StatusACTIVE
Accessory Components and QuantityLAMP,2.5 V 0.38 AMP,BAYONET BASE 2 V
Cord HandleNOT PROVIDED
Lens Zero ApertureINCLUDED
Lens Positive Diopter Power Range+2.50 TO 40.00
Lens Negative Diopter Power Range-25.00 TO 0.00
Carrying CasePROVIDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6665-01-421-528719-8117 INTERCHANGEABLE
Indicator,carbon Monoxide
Bacharach, Inc.
Cross-Reference Index
Part NumberManufacturer
198004 PRIMARY Propper Manufacturing Company, Inc. Div Propper Manufacturing Company (USA)
Related Parts
6665-01-421-5287INTERCHANGEABLE
INDICATOR,CARBON MONOXIDE
19-8117

Frequently Asked Questions

What is NSN 6540-00-935-4058?

NSN 6540-00-935-4058 is a Ophthalmoscope, manufactured by Propper Manufacturing Company, Inc. Div Propper Manufacturing Company, classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-00-935-4058?

NSN 6540-00-935-4058 has 1 cross-referenced part number: 198004 (Propper Manufacturing Company, Inc. Div Propper Manufacturing Company).

What NSN replaces 6540-00-935-4058?

There is 1 known substitute for 6540-00-935-4058: 6665-01-421-5287. Verify interchangeability with system specifications before substitution.

What are the specifications of 198004?

Key specifications for 198004: Accessory Components and Quantity: LAMP,2.5 V 0.38 AMP,BAYONET BASE 2 V; Cord Handle: NOT PROVIDED; Lens Zero Aperture: INCLUDED; Special Features: BATTERY TYPE WITH TWO DISKS; ONE DISK W/23 LENSES RANGING FROM 0 TO 25 AND 0 TO +40 DIOPTERS; ONE FILTER DISK WITH FIVE APERTURES AS FOLLOWS,PIN HOLE,NORMAL,CLEAR SLIT,RED FREE CYLINDER,AND EITHER A GRID OR YELLOW FILTER; BATTERY HANDLE,AND THREE 2.5 VOLT SINGLE CONTACT LAMPS; FOR REPLACEMENT LAMP,ORDER ACCORDING TO MANUFACTURER AND MODEL; FOR BATTERY ORDER 6135-00-120-1020. 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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