PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15971Microscope,optical

Unitron Inc · NSN 6650-01-285-5855 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-01-285-5855 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-285-5855. Primary manufacturer part number: 15971.
Features
  • Microscope,optical — FSC 6650
  • Body Tube Position: INCLINED
  • Usage Design: METALLURGY
  • Body Tube Analyzer: INCLUDED
  • Carrying Case: NOT PROVIDED
  • Nosepiece Design: TURRET
  • Objective Quantity: 4
  • Body Tube Interchangeability Feature: PROVIDED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microscope,optical, cataloged under National Stock Number 6650-01-285-5855, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Unitron Inc. Government technical data includes 10 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
NSN6650-01-285-5855
Primary Part Number15971
Item NameMicroscope,optical
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerUnitron Inc
StatusACTIVE
Body Tube PositionINCLINED
Usage DesignMETALLURGY
Body Tube AnalyzerINCLUDED
Carrying CaseNOT PROVIDED
Nosepiece DesignTURRET
Objective Quantity4
Body Tube Interchangeability FeaturePROVIDED
Body Tube Bertrand LensNOT PROVIDED
Body Tube Accessroy SlotNOT PROVIDED
Nosepiece Place Quantity4
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5950-00-232-7281712073-011 INTERCHANGEABLE
Transformer,radio Frequency
Raytheon Company Div Rmd Strategic
2540-00-499-286910921776-1 INTERCHANGEABLE
Rod,door,latch
U S Army Tank Automotive Command Amsta-Im-Mm
5940-00-660-653194-638-7 INTERCHANGEABLE
Terminal,stud
Lockheed Martin Corporation Div Rms - Mitchel Field
5340-00-780-458115971 INTERCHANGEABLE
Bracket,mounting
Unison Industries Llc
6140-01-337-278115971 INTERCHANGEABLE
Battery,storage
L3 Aviation Products, Inc. Dba L3 Technologies
4940-01-389-3108 INTERCHANGEABLE
Cylinder,blast Cleaning Cabinet
5133-01-399-1227 INTERCHANGEABLE
Drill,twist
6105-01-466-446815971 INTERCHANGEABLE
Motor,alternating Current
Belfort Instrument Company
6515-01-582-80178154A-LR-3 INTERCHANGEABLE
Pad,crest,toe
Pedifix, Inc.
Cross-Reference Index
Part NumberManufacturer
15971 Unitron Inc (USA)
Related Parts
5950-00-232-7281INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
712073-011
2540-00-499-2869INTERCHANGEABLE
ROD,DOOR,LATCH
10921776-1
5940-00-660-6531INTERCHANGEABLE
TERMINAL,STUD
94-638-7
5340-00-780-4581INTERCHANGEABLE
BRACKET,MOUNTING
15971
6140-01-337-2781INTERCHANGEABLE
BATTERY,STORAGE
15971
4940-01-389-3108INTERCHANGEABLE
CYLINDER,BLAST CLEANING CABINET
5133-01-399-1227INTERCHANGEABLE
DRILL,TWIST
6105-01-466-4468INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
15971
6515-01-582-8017INTERCHANGEABLE
PAD,CREST,TOE
8154A-LR-3

Frequently Asked Questions

What is NSN 6650-01-285-5855?

NSN 6650-01-285-5855 is a Microscope,optical, manufactured by Unitron Inc, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-01-285-5855?

NSN 6650-01-285-5855 has 1 cross-referenced part number: 15971 (Unitron Inc).

What NSN replaces 6650-01-285-5855?

There are 9 known substitutes for 6650-01-285-5855: 5950-00-232-7281, 2540-00-499-2869, 5940-00-660-6531 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15971?

Key specifications for 15971: Body Tube Position: INCLINED; Usage Design: METALLURGY; Body Tube Analyzer: INCLUDED; Carrying Case: NOT PROVIDED. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com