Description
NR stopper, grey, is a solid rubber laboratory stopper intended for reliable sealing of flasks, bottles and other vessels in routine laboratory work. It tapers from an upper diameter of 49 mm to a lower diameter of 41 mm and has a height of 40 mm, giving a secure, friction fit in matching openings. Manufactured without bores, the stopper provides a continuous sealing surface and is supplied as a single piece. The grey rubber construction offers the elasticity and chemical resistance typically required for general laboratory closures, sample storage and temporary vessel sealing. Net weight is 0,0763 kg. This NR stopper from manufacturer Deutsch & Neumann belongs to the standard stopper range used across analytical, educational and industrial laboratories wherever a plain, undrilled rubber plug of these dimensions is needed. Suitable for everyday sealing tasks, it supports clean handling and straightforward replacement when wear or contamination occurs. Dimensions and material data correspond to the stated product specification for consistent fit and performance in laboratory glassware and plasticware setups.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Rubber
- Colour: Grey
- Lower diameter: 41 mm
- Upper diameter: 49 mm
- Height: 40 mm
- Technical Information Sheet:
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Questions about stopper NR, grey, bottom diameter: 41 mm top diameter: 49 mm height: 40 mm
What is this article?
stopper NR, grey, bottom diameter: 41 mm top diameter: 49 mm height: 40 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 Europe, two to five days when 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.
