Description
NR stopper, red, with lower diameter 71 mm, upper diameter 83 mm and height 60 mm is a solid rubber laboratory stopper supplied without bores. Its conical geometry tapers from 83 mm at the top to 71 mm at the base, providing a secure fit in matching vessel necks for effective closure of flasks, bottles and other laboratory containers. The red rubber material offers the flexibility and dimensional stability required for everyday laboratory handling and repeated use. Net weight is 0,3575 kg. Supplied as a single piece, this stopper from manufacturer Deutsch & Neumann is manufactured in Germany and belongs to the established range of standard rubber stoppers for chemistry, life-science and analytical laboratories. Zero pre-drilled bores make it appropriate for applications that demand a complete seal without openings for tubing or probes. Controlled dimensions of 71 mm lower diameter, 83 mm upper diameter and 60 mm height support consistent seating and reliable sealing performance across research, quality-control and teaching laboratory workflows.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Rubber
- Colour: Red
- Lower diameter: 71 mm
- Upper diameter: 83 mm
- Height: 60 mm
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Questions about stopper NR, red, bottom diameter: 71 mm top diameter: 83 mm height: 60 mm
What is this article?
stopper NR, red, bottom diameter: 71 mm top diameter: 83 mm height: 60 mm is the article on this page. Luminix Health distributes Deutsch & Neumann for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Labware.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
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 Rubber & silicone stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Ground-joint glass 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.