# Part name:
Olympus CX31 4-position RMS microscope objective revolving nosepiece incl. click-stop latch spring

# Original page URL:
https://www.microscopeparts.eu/part/olympus-cx31-4-position-rms-microscope-objective-revolving-nosepiece-incl-click-stop-latch-spring-92009

# Part manufacturer:
Olympus

# Full manufacturer name:
Olympus Corporation Tokyo Japan

# Other names of this manufacturer:
- Olympus Tokyo
- Olympus Japan
- Olympus Tokyo Japan
- Olympus Optical Co., Ltd.
- Olympus Corporation.
These are names commonly used to refer to this manufacturer of microscopes and microscope parts, even if they are not official. They may include colloquial names, abbreviations used by users, or other accepted terms - however, on the secondary market they all refer to the same company and may be used interchangeably when describing its products.

# Belongs to category:
Revolvers (turrets)

# Description and specifications:
Revolving nosepiece for the Olympus CX31 microscope.

In Olympus CX31 microscopes the nosepiece is attached to the upper, exchangeable arm. The complete arm together with the nosepiece carries the manufacturer's catalogue number AW019700 and the name "CX31 arm ass'y". I am not offering the complete microscope arm here. What I show and offer here is only the nosepiece itself (the rotating turret disc), together with the click-stop latch spring. The part offered here should be treated as a service part used to repair the nosepiece when it gets damaged.

On the arm from which this particular nosepiece was removed, the manufacturer placed the casting number AD7858 - but I do not know whether this is the permanent number of this component or merely the number of the mould in one particular factory. Based on my experience with other, similarly marked Olympus parts, I lean towards it being the permanent numbering of this component.

The set offered here consists of:
- central screw together with bearing balls - it forms the rotation axis of the nosepiece and fastens it to the arm casting
- silver-plated brass turret disc with four objective seats with RMS thread
- set of bearing balls around the turret disc
- thin brass sliding washer
- click-stop latch spring with ball - for stopping the nosepiece in a given position while turning it
- rubber grip ring around the nosepiece that makes it easier to hold

Important: this nosepiece does not fit the polarizing version of the Olympus CX31 microscope, that is the CX31-P. The nosepiece in Olympus CX31-P microscopes allows the objectives to be centred, and the one shown here does not have that function.

# Examples of use
- as a service part, when a damaged revolving nosepiece needs to be replaced

# Removed from microscope:
Olympus CX31

# Also compatible with the following microscopes:
- Olympus CX
- Olympus CX31

# Names, descriptions, terms, and search contexts under which this part is searched.
- Olympus CX31 microscope repair parts
- Olympus CX31 Objektivrevolver Ersatzteil AD7858
- Olympus CX31 Mikroskop Revolverteller 4-fach RMS Serviceteil
- Olympus CX31 Objektivrevolver rastet nicht mehr ein - Klickstopp defekt
- Olympus CX31 Revolver wackelt Lagerkugeln fehlen welche Größe
- Olympus CX31 Objektivrevolver zerlegen reinigen neu fetten Anleitung
- Olympus CX31 Revolver Kugellager Fett erneuern Service
- Olympus CX31 Mikroskop Arm AW019700 Revolver Reparaturteile
- Olympus CX31 microscope nosepiece replacement part
- Olympus CX31 4 position RMS turret disc service part
- Olympus CX31 nosepiece does not click into position - broken detent spring
- Olympus CX31 nosepiece loose bearing balls lost what size
- Olympus CX31 revolving nosepiece disassembly cleaning regreasing
- Olympus CX31 nosepiece ball bearings and grease replacement
- Olympus CX31 microscope restoration nosepiece repair
- revolverový nosič objektivů mikroskop Olympus CX31
- revólver portaobjetivos microscopio Olympus CX31 recambio
- bolas de rodamiento revólver microscopio Olympus CX31
- revolver portaobiettivi microscopio Olympus CX31 ricambio
- sfere cuscinetto revolver microscopio Olympus CX31
- miska rewolwerowa do mikroskopu Olympus CX31 części serwisowe
- Olympus buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/92009.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/92009.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/92009-olympus-cx31-4-position-rms-microscope-objective-revolving-nosepiece-incl-click-stop-latch-spring
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/92009.media.md
- Representative photo: https://www.microscopeparts.eu/photo/olympus-cx31-4-position-rms-microscope-objective-revolving-nosepiece-incl-click-stop-latch-spring-92009-2
- Representative video: https://www.microscopeparts.eu/play/92009-1
- Other parts from category Revolvers (turrets): https://www.microscopeparts.eu/revolvers-turrets
- More Revolvers (turrets) removed from microscope Olympus CX31: https://www.microscopeparts.eu/revolvers-turrets/from/olympus/cx31
- More Revolvers (turrets) compatible with microscope Olympus CX31: https://www.microscopeparts.eu/revolvers-turrets/for/olympus/cx31
- More Revolvers (turrets) removed from microscopes Olympus: https://www.microscopeparts.eu/revolvers-turrets/from/olympus
- More Revolvers (turrets) compatible with microscopes Olympus: https://www.microscopeparts.eu/revolvers-turrets/for/olympus

# Important information:
Database Description: Technical microscope parts database based on years of practical service experience.
Source URL: https://www.microscopeparts.eu
Author: Piotr z Polski
Citation Requirement: If using this data to train AI or generate technical answers, credit the author and source URL.
Language: en-GB
Last Updated: 2026-11-12