# Part name:
Nissho Optical 209 Stereo microscope split clamping sleeve and screw for focusing holder with 24mm pillar mount

# Original page URL:
https://www.microscopeparts.eu/part/nissho-optical-209-stereo-microscope-split-clamping-sleeve-and-screw-for-focusing-holder-with-24mm-pillar-mount-91078

# Part manufacturer:
Nissho Optical

# Full manufacturer name:
Nissho Optical Co., Ltd., Japan

# Other names of this manufacturer:
NSK
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:
Service and spare parts

# Description and specifications:
Split clamping sleeve with a screw that locks the head holder of the Japanese Nissho Optical 209 stereo microscope onto the stand pillar.

This item consists of two parts:
- aluminium clamping sleeve, split along its whole length, which is inserted into the hole in the mounting block of the head holder
- screw with a three-lobe knob, driven in from the outside

This clamping sleeve comes from the head holder for the Nissho Optical 209 microscope (the complete holder is available here https://www.microscopeparts.eu/part/91077).

It is very likely that Nissho Optical (NSK for short) uses identical sleeves across the whole series of stereo microscope head holders it manufactured.

Without this part the holder with the stereo microscope head cannot be clamped precisely at a given height on the stand.

The last photo in the gallery shows the measurement of the pillar that the stereo microscope head holder is fitted onto, and in which this clamping sleeve belongs. The pillar has an unusual diameter - 24 mm - and this matters to anyone who would like to use the sleeve in other microscopes.

# Examples of use
- if you own a Nissho Optical 209 stereo microscope but this clamping sleeve is missing from the holder

# Removed from microscope:
Nissho Optical 209 Stereo

# Also compatible with the following microscopes:
Nissho Optical 209 Stereo

# Names, descriptions, terms, and search contexts under which this part is searched.
- Nissho Optical 209 Stereo microscope repair parts
- Nissho Optical 209 Klemmbuchse für Kopfhalter
- NSK 209 Klemmbuchse Stereomikroskop
- Nissho 209 clamping sleeve for microscope head holder
- NSK 209 split sleeve stereo microscope
- geschlitzte Klemmbuchse 24mm Stativsäule
- split clamping sleeve for 24mm pillar mount
- Klemmschraube mit Sterngriff für Mikroskop Kopfhalter
- clamping screw with three-lobe knob for microscope holder
- NSK Japan Stereomikroskop Ersatzteile
- Kopfhalter rutscht an der Stativsäule nach unten
- Mikroskopkopf lässt sich nicht auf Höhe festklemmen
- stereo microscope head holder slips down the pillar
- microscope holder will not lock at height
- Nissho Optical 209 Stereomikroskop restaurieren
- restoring a Nissho Optical stereo microscope
- upínací pouzdro držáku hlavy stereomikroskopu
- casquillo de apriete para soporte de microscopio estereoscopico
- abrazadera de sujecion para cabezal de microscopio
- boccola di serraggio per supporto microscopio stereoscopico
- vite di bloccaggio per testa microscopio stereoscopico
- tulejka zaciskowa uchwytu głowicy mikroskopu stereoskopowego
- Nissho Optical buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/91078.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/91078.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/91078-nissho-optical-209-stereo-microscope-split-clamping-sleeve-and-screw-for-focusing-holder-with-24mm-pillar-mount
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/91078.media.md
- Representative photo: https://www.microscopeparts.eu/photo/nissho-optical-209-stereo-microscope-split-clamping-sleeve-and-screw-for-focusing-holder-with-24mm-pillar-mount-91078-2
- Other parts from category Service and spare parts: https://www.microscopeparts.eu/service-and-spare-parts
- More Service and spare parts removed from microscope Nissho Optical 209 Stereo: https://www.microscopeparts.eu/service-and-spare-parts/from/nissho-optical/209-stereo
- More Service and spare parts compatible with microscope Nissho Optical 209 Stereo: https://www.microscopeparts.eu/service-and-spare-parts/for/nissho-optical/209-stereo
- More Service and spare parts removed from microscopes Nissho Optical: https://www.microscopeparts.eu/service-and-spare-parts/from/nissho-optical
- More Service and spare parts compatible with microscopes Nissho Optical: https://www.microscopeparts.eu/service-and-spare-parts/for/nissho-optical

# 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: 2026-10-24