PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31-21-28-22Microscope,optical

Bausch & Lomb Inc · NSN 6650-00-071-3102 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-00-071-3102 — this item is cataloged by the U.S. Government under National Stock Number 6650-00-071-3102. Primary manufacturer part number: 31-21-28-22.
Features
  • Microscope,optical — FSC 6650
  • Lens Type: ACHROMATIC
  • Nonstereoscopic Type: MONOCULAR
  • Body Tube Position: VERTICAL
  • Usage Design: BIOLOGY
  • Nosepiece Place Quantity: 2
  • Objective Quantity: 2
  • Body Tube Analyzer: NOT INCLUDED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microscope,optical, cataloged under National Stock Number 6650-00-071-3102, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bausch & Lomb Inc. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-00-071-3102
Primary Part Number31-21-28-22
Item NameMicroscope,optical
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerBausch & Lomb Inc
StatusACTIVE
Lens TypeACHROMATIC
Nonstereoscopic TypeMONOCULAR
Body Tube PositionVERTICAL
Usage DesignBIOLOGY
Nosepiece Place Quantity2
Objective Quantity2
Body Tube AnalyzerNOT INCLUDED
Nosepiece DesignTURRET
Eyepiece Magnification10
Carrying CaseNOT PROVIDED
Focusing TypeADJUSTABLE
Eyepiece Quantity1
Body Tube Bertrand LensNOT PROVIDED
Eyepiece DesignatorHUYGENIAN
Disc Insert Usage DesignPROVIDED
Body Tube Interchangeability FeatureNOT PROVIDED
Body Tube Accessroy SlotNOT PROVIDED
Design TypeGENERAL PURPOSE
Magnification100.0X NOMINAL AND 430.0X NOMINAL
Mirror Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5999-00-272-2171ST22 INTERCHANGEABLE
Clip,electrical
Standard Motor Products
3130-00-888-7415 INTERCHANGEABLE
Bearing Unit,ball
4140-01-437-2871 INTERCHANGEABLE
Stroller,ventilating Fan
Cross-Reference Index
Part NumberManufacturer
31-21-28-22 Bausch & Lomb Inc (USA)
ST22 Bausch & Lomb Inc (USA)
Related Parts
5999-00-272-2171INTERCHANGEABLE
CLIP,ELECTRICAL
ST22
3130-00-888-7415INTERCHANGEABLE
BEARING UNIT,BALL
4140-01-437-2871INTERCHANGEABLE
STROLLER,VENTILATING FAN

Frequently Asked Questions

What is NSN 6650-00-071-3102?

NSN 6650-00-071-3102 is a Microscope,optical, manufactured by Bausch & Lomb Inc, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-00-071-3102?

NSN 6650-00-071-3102 has 2 cross-referenced part numbers: 31-21-28-22 (Bausch & Lomb Inc), ST22 (Bausch & Lomb Inc).

What NSN replaces 6650-00-071-3102?

There are 3 known substitutes for 6650-00-071-3102: 5999-00-272-2171, 3130-00-888-7415, 4140-01-437-2871. Verify interchangeability with system specifications before substitution.

What are the specifications of 31-21-28-22?

Key specifications for 31-21-28-22: Lens Type: ACHROMATIC; Nonstereoscopic Type: MONOCULAR; Body Tube Position: VERTICAL; Usage Design: BIOLOGY. 20 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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