Description
NR stopper, red, with lower diameter 64,5 mm, upper diameter 75,5 mm and height 55 mm is a solid rubber laboratory stopper supplied without bores. The conical shape tapers from 75,5 mm at the top to 64,5 mm at the base, allowing secure seating in corresponding vessel necks for dependable closure of flasks, bottles and laboratory glassware. Red rubber construction combines elasticity with mechanical stability for repeated laboratory use. Net weight is 0,24803 kg per piece. Available as a single unit, this stopper from manufacturer Deutsch & Neumann originates from Germany and forms part of a standard series of rubber stoppers for chemistry, biology and industrial laboratory environments. The absence of bores makes it suitable wherever a full, uninterrupted seal is required without passage for tubing or instruments. Accurate dimensions of 64,5 mm lower diameter, 75,5 mm upper diameter and 55 mm height ensure reproducible fitting and reliable sealing performance in research, quality-control and educational laboratory settings.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Rubber
- Colour: Red
- Lower diameter: 64,5 mm
- Upper diameter: 75,5 mm
- Height: 55 mm
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Questions about stopper NR, red, bottom diameter: 64,5 mm top diameter: 75,5 mm height: 55 mm
What is this article?
stopper NR, red, bottom diameter: 64,5 mm top diameter: 75,5 mm height: 55 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. Delivery across the EU, two to five days if in stock. 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.
