PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C115Objective,microscope

Leica Inc Surveying and Photogrammetry Systems Div · NSN 6650-00-077-0638 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-00-077-0638 — this item is cataloged by the U.S. Government under National Stock Number 6650-00-077-0638. Primary manufacturer part number: C115.
Features
  • Objective,microscope — FSC 6650
  • Iris Diaphragm: NOT INCLUDED
  • Cover Glass Correction Collar: NOT PROVIDED
  • Magnification: 43.0X NOMINAL OR 44.0X NOMINAL
  • Objective Type: DRY
  • Lens Focal Length: 4.0 MILLIMETERS NOMINAL MM
  • Numeric Aperture: 0.65 OR 0.66
  • Working Distance: 0.6 MILLIMETERS NOMINAL MM
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Objective,microscope, cataloged under National Stock Number 6650-00-077-0638, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Leica Inc Surveying and Photogrammetry Systems Div. Government technical data includes 9 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-00-077-0638
Primary Part NumberC115
Item NameObjective,microscope
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerLeica Inc Surveying and Photogrammetry Systems Div
StatusACTIVE
Iris DiaphragmNOT INCLUDED
Cover Glass Correction CollarNOT PROVIDED
Magnification43.0X NOMINAL OR 44.0X NOMINAL
Objective TypeDRY
Lens Focal Length4.0 MILLIMETERS NOMINAL MM
Numeric Aperture0.65 OR 0.66
Working Distance0.6 MILLIMETERS NOMINAL MM
Lens Coating FeatureCOATED
Lens TypeACHROMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
1680-00-021-6035C115 INTERCHANGEABLE
Actuator,electro-Mechanical,line
Simmonds Precision Products Inc
5330-00-292-16041206 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5133-00-357-0120C115 INTERCHANGEABLE
Cutter,counterbore
Wright Machine & Tool Co., Inc.
6110-00-427-2981C115 INTERCHANGEABLE
Regulator,voltage
Stewart & Stevenson Power Products Llc
5910-00-585-0109 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
5940-00-666-335533479 INTERCHANGEABLE
Terminal,lug
Te Connectivity Corporation
3040-00-944-1375C115 INTERCHANGEABLE
Clamp,hub
Designatronics Incorporated Div Sterling Instruments Div
5360-01-358-3589SW32344 INTERCHANGEABLE
Spring,helical,extension
Drs Sustainment Systems Inc
6625-01-660-2736C115 INTERCHANGEABLE
Case,electrical-Electronic Test
Fluke Corp
Cross-Reference Index
Part NumberManufacturer
C115 PRIMARY Leica Inc Surveying and Photogrammetry Systems Div (USA)
C115 American Optical Co (USA)
Related Parts
1680-00-021-6035INTERCHANGEABLE
ACTUATOR,ELECTRO-MECHANICAL,LINE
C115
5330-00-292-1604INTERCHANGEABLE
SEAL,PLAIN ENCASED
1206
5133-00-357-0120INTERCHANGEABLE
CUTTER,COUNTERBORE
C115
6110-00-427-2981INTERCHANGEABLE
REGULATOR,VOLTAGE
C115
5910-00-585-0109INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
5940-00-666-3355INTERCHANGEABLE
TERMINAL,LUG
33479
3040-00-944-1375INTERCHANGEABLE
CLAMP,HUB
C115
5360-01-358-3589INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
SW32344
6625-01-660-2736INTERCHANGEABLE
CASE,ELECTRICAL-ELECTRONIC TEST
C115

Frequently Asked Questions

What is NSN 6650-00-077-0638?

NSN 6650-00-077-0638 is a Objective,microscope, manufactured by Leica Inc Surveying and Photogrammetry Systems Div, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-00-077-0638?

NSN 6650-00-077-0638 has 2 cross-referenced part numbers: C115 (Leica Inc Surveying and Photogrammetry Systems Div), C115 (American Optical Co).

What NSN replaces 6650-00-077-0638?

There are 9 known substitutes for 6650-00-077-0638: 1680-00-021-6035, 5330-00-292-1604, 5133-00-357-0120 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C115?

Key specifications for C115: Iris Diaphragm: NOT INCLUDED; Cover Glass Correction Collar: NOT PROVIDED; Magnification: 43.0X NOMINAL OR 44.0X NOMINAL; Objective Type: DRY. 9 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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