Description
Glass stopper for NS 24/29, brown glass is a ground-joint laboratory stopper for the tight sealing of vessels. Dimensioned to the standard NS 24/29 joint and manufactured in brown glass according to DIN 12 252, it provides a reliable conical ground-glass closure for flasks, bottles and other apparatus fitted with a matching joint. The brown glass body attenuates ambient light relative to clear glass, supporting use with light-sensitive contents during storage or handling in the laboratory. Each unit is supplied as one piece with a net weight of 0,019 kg and a gross weight of 0,022 kg, and the compact pack format suits organised bench or store inventory. This stopper from manufacturer Hirschmann is intended for routine chemical, analytical and research workflows that rely on interchangeable DIN ground-joint systems. The precision-ground sealing surface promotes a snug mechanical fit that helps limit evaporation and contamination when correctly seated, without additional sealing aids in many standard applications. Compatible with common NS 24/29 glassware, it offers a straightforward replacement or spare for laboratories standardising on brown-glass closures. Select this NS 24/29 brown glass stopper when a DIN-compliant, light-reducing vessel seal is required.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Storage temperature: +5 - +40 °C
- Joint size: NS 24/29
- Material: Brown glass
- Standard: DIN 12 252
- EAN: 4049338019175
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Questions about GLASSTOPPER F. NS 24/29, AMBER GLASS
What is this article?
GLASSTOPPER F. NS 24/29, AMBER GLASS 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.

