Description
Glass stopper for NS 7/16 in brown glass is a ground-joint closure designed for tight sealing of laboratory vessels. The stopper follows DIN 12 252 and matches the standard taper NS 7/16, ensuring reliable fit on compatible flasks, bottles and reaction vessels. Brown glass reduces light transmission, which helps protect light-sensitive contents during storage or handling. Manufactured by Hirschmann, this component is intended for routine laboratory use where a durable glass-to-glass seal is preferred over plastic alternatives. The pack contains 10 pc(s), with a net weight of 0,002 kg per stopper, supporting stock replenishment for teaching labs, analytical workflows and preparative chemistry. Correct seating of the NS 7/16 joint provides a secure closure for solvents, reagents and samples that require limited light exposure. Dimensions of the joint are standardised, so interchangeability with other DIN-conform glassware is maintained. Choose this brown-glass NS stopper when both mechanical sealing performance and amber protection are required in everyday laboratory glassware assemblies.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Storage temperature: +5 – +40 °C
- Joint size: NS 7/16
- Material: Brown glass
- Standard: DIN 12 252
- EAN: 4049338019120
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Questions about GLASSTOPPER F. NS 7/16, AMBER GLASS
What is this article?
GLASSTOPPER F. NS 7/16, 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.