Description
Glass stopper for NS 14/23 is a hollow clear-glass stopper designed for the tight sealing of laboratory vessels that carry a matching standard ground joint. Manufactured according to DIN 12 252, it provides a dependable closure for flasks and related glassware in chemical, pharmaceutical and analytical laboratories. The NS 14/23 joint size aligns with widely used ground-joint systems, supporting a secure glass-to-glass fit without additional sealing media when correctly seated. Constructed from clear glass in a hollow configuration, the stopper remains lightweight yet robust enough for repeated handling and cleaning. Offered as 1 pc from manufacturer Hirschmann, it serves as a straightforward replacement or spare part for routine sealing applications. The standardised geometry and inert glass surface make it suitable for teaching labs, research benches and quality-control setups that depend on interchangeable ground-joint apparatus and reliable vessel closure.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Storage temperature: +5 - +40°C
- Ground joint size: NS 14/23
- Material: Clear glass
- Type: Hollow glass stopper
- EAN: 4049338018529
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Questions about GLASS STOPPER NS 14/23
What is this article?
GLASS STOPPER NS 14/23 is the article on this page. Luminix Health distributes Hirschmann for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Lids & seals and Closures (other).
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.