PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C-604Magnifier

Donegan Optical Company Inc · NSN 6650-01-640-6941 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-01-640-6941 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-640-6941. Primary manufacturer part number: C-604.
Features
  • Magnifier — FSC 6650
  • Unit Type: MONOCULAR
  • Lens Arrangement: PERMANENTLY ALIGNED
  • Shape: CIRCULAR
  • Lens Quantity: 1
  • Magnification: 4.5 NOMINAL
  • 1 verified cross-reference
  • Primary manufacturer: Donegan Optical Company Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Magnifier, cataloged under National Stock Number 6650-01-640-6941, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Donegan Optical Company Inc. Government technical data includes 5 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-01-640-6941
Primary Part NumberC-604
Item NameMagnifier
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerDonegan Optical Company Inc
StatusACTIVE
Unit TypeMONOCULAR
Lens ArrangementPERMANENTLY ALIGNED
ShapeCIRCULAR
Lens Quantity1
Magnification4.5 NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5305-00-276-8228C604 INTERCHANGEABLE
Setscrew
Morris Material Handling, Inc.
5305-00-281-161610B21245 INTERCHANGEABLE
Setscrew
Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)
4720-00-443-47461120-4A-BLK-1000 INTERCHANGEABLE
Tubing,nonmetallic
Parker-Hannifin Corp Div Parflex Division
5340-00-497-5400C604 INTERCHANGEABLE
Loop,strap Fastener
Band-It-Idex Inc Unit of Idex Corp
4730-01-148-5006 INTERCHANGEABLE
Coupling Assembly,quick Disconne
4730-01-656-1693C-604 INTERCHANGEABLE
Coupling Assembly,quick Disconne
Enerpac Tool Group Corp
Cross-Reference Index
Part NumberManufacturer
C-604 PRIMARY Donegan Optical Company Inc (USA)
Related Parts
5305-00-276-8228INTERCHANGEABLE
SETSCREW
C604
5305-00-281-1616INTERCHANGEABLE
SETSCREW
10B21245
4720-00-443-4746INTERCHANGEABLE
TUBING,NONMETALLIC
1120-4A-BLK-1000
5340-00-497-5400INTERCHANGEABLE
LOOP,STRAP FASTENER
C604
4730-01-148-5006INTERCHANGEABLE
COUPLING ASSEMBLY,QUICK DISCONNE
4730-01-656-1693INTERCHANGEABLE
COUPLING ASSEMBLY,QUICK DISCONNE
C-604

Frequently Asked Questions

What is NSN 6650-01-640-6941?

NSN 6650-01-640-6941 is a Magnifier, manufactured by Donegan Optical Company Inc, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-01-640-6941?

NSN 6650-01-640-6941 has 1 cross-referenced part number: C-604 (Donegan Optical Company Inc).

What NSN replaces 6650-01-640-6941?

There are 6 known substitutes for 6650-01-640-6941: 5305-00-276-8228, 5305-00-281-1616, 4720-00-443-4746 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C-604?

Key specifications for C-604: Unit Type: MONOCULAR; Special Features: SIZE-4 IN, FOCAL LENGTH 9 IN, LIGHTWEIGHT ACRYLIC IN; Part Name Assigned by Controlling Agency: MAGNIFYING GLASS; Lens Arrangement: PERMANENTLY ALIGNED. 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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