Description
NBR stopper, black, with a lower diameter of 60 mm and an upper diameter of 70 mm is a solid conical laboratory stopper for reliable closure of flasks, bottles and similar vessels. Standing 50 mm high and supplied without bores, it serves as a plain plug for both short-term and longer-term sealing tasks. Produced from NBR rubber, the stopper provides a balance of flexibility and mechanical strength and is finished in black. This rubber stopper from manufacturer Deutsch & Neumann suits general laboratory use in chemistry, biology and industrial settings that call for a tapered seal matching the stated diameters. The net weight is 0,19195 kg. Its conical geometry allows progressive insertion into openings within the given range, delivering a secure fit without additional adapters. Packaged as a single piece, the stopper supports routine sample storage, vessel handling and apparatus setup wherever a durable, oil-resistant rubber seal is preferred over cork or silicone alternatives.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: NBR rubber
- Colour: Black
- Lower diameter: 60 mm
- Upper diameter: 70 mm
- Height: 50 mm
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Questions about stopper NBR, black, bottom diameter: 60 mm top diameter: 70 mm height: 50 mm
What is this article?
stopper NBR, black, bottom diameter: 60 mm top diameter: 70 mm height: 50 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.