PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M220Objective,microscope

Gaertner Scientific Corporation · NSN 6650-01-055-3527 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-01-055-3527 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-055-3527. Primary manufacturer part number: M220.
Features
  • Objective,microscope — FSC 6650
  • Lens Focal Length: 32.0 MILLIMETERS NOMINAL MM
  • Working Distance: 35.0 MILLIMETERS NOMINAL MM
  • Lens Coating Feature: UNCOATED
  • Numeric Aperture: 2.70
  • FSC Application Data: INFRARED RECON SET
  • Lens Type: ACHROMATIC
  • Cover Glass Correction Collar: NOT PROVIDED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Objective,microscope, cataloged under National Stock Number 6650-01-055-3527, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Gaertner Scientific Corporation. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-01-055-3527
Primary Part NumberM220
Item NameObjective,microscope
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerGaertner Scientific Corporation
StatusACTIVE
Lens Focal Length32.0 MILLIMETERS NOMINAL MM
Working Distance35.0 MILLIMETERS NOMINAL MM
Lens Coating FeatureUNCOATED
Numeric Aperture2.70
FSC Application DataINFRARED RECON SET
Lens TypeACHROMATIC
Cover Glass Correction CollarNOT PROVIDED
Objective TypeDRY
Magnification4.0X NOMINAL
Iris DiaphragmNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-100-6155MS19059-2418 INTERCHANGEABLE
Ball,bearing
American Society for Testing and Materials Dba Astm International
2320-00-835-86008358600 INTERCHANGEABLE
Truck,van
U S Army Tank Automotive Command Amsta-Im-Mm
6140-01-193-0907M220 INTERCHANGEABLE
Liquid Supply
Simplex Filler Co
7025-01-348-0191 INTERCHANGEABLE
Display Unit
5340-01-377-0342M220 INTERCHANGEABLE
Magnet,permanent
North American Signal Co
7010-01-550-4736M220 INTERCHANGEABLE
Computer System,digital
Getac Inc
5340-01-571-2211M-220 INTERCHANGEABLE
Plate,mounting
Phoenix International, Limited V
6635-01-625-2074M220 INTERCHANGEABLE
Extensometer
Mark-10 Corp Dba Mark-10 Corp
Cross-Reference Index
Part NumberManufacturer
21016227-101 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
M220 PRIMARY Gaertner Scientific Corporation (USA)
Related Parts
3110-00-100-6155INTERCHANGEABLE
BALL,BEARING
MS19059-2418
2320-00-835-8600INTERCHANGEABLE
TRUCK,VAN
8358600
6140-01-193-0907INTERCHANGEABLE
LIQUID SUPPLY
M220
7025-01-348-0191INTERCHANGEABLE
DISPLAY UNIT
5340-01-377-0342INTERCHANGEABLE
MAGNET,PERMANENT
M220
7010-01-550-4736INTERCHANGEABLE
COMPUTER SYSTEM,DIGITAL
M220
5340-01-571-2211INTERCHANGEABLE
PLATE,MOUNTING
M-220
6635-01-625-2074INTERCHANGEABLE
EXTENSOMETER
M220

Frequently Asked Questions

What is NSN 6650-01-055-3527?

NSN 6650-01-055-3527 is a Objective,microscope, manufactured by Gaertner Scientific Corporation, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-01-055-3527?

NSN 6650-01-055-3527 has 2 cross-referenced part numbers: 21016227-101 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems), M220 (Gaertner Scientific Corporation).

What NSN replaces 6650-01-055-3527?

There are 8 known substitutes for 6650-01-055-3527: 3110-00-100-6155, 2320-00-835-8600, 6140-01-193-0907 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M220?

Key specifications for M220: Lens Focal Length: 32.0 MILLIMETERS NOMINAL MM; Working Distance: 35.0 MILLIMETERS NOMINAL MM; Lens Coating Feature: UNCOATED; Numeric Aperture: 2.70. 10 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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