Description
NBR stopper, black, lower diameter 8 mm, upper diameter 12 mm and height 20 mm is a solid tapered rubber stopper intended for laboratory and technical sealing duties. Fabricated from nitrile butadiene rubber (NBR), the black stopper features a conical shape that tapers from 12 mm at the upper end to 8 mm at the lower end, ensuring a secure seating in corresponding openings of flasks, bottles or apparatus. Height is 20 mm throughout, and the stopper contains no boreholes, delivering an unbroken seal without channels for tubing or rods. Net weight is 0,00183 kg. Offered as a single piece from manufacturer Deutsch & Neumann, this item forms part of the standard rubber-stopper assortment employed in chemical, biological and analytical laboratories. The solid NBR construction and defined taper support dependable closure wherever a continuous barrier is needed. Consistent black colouring and precise dimensional data simplify identification and replacement within routine laboratory workflows that require a compact black NBR plug of these measurements.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: NBR (nitrile rubber)
- Colour: Black
- Lower diameter: 8 mm
- Upper diameter: 12 mm
- Height: 20 mm
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Questions about stopper NBR, black, bottom diameter: 8 mm top diameter: 12 mm height: 20 mm
What is this article?
stopper NBR, black, bottom diameter: 8 mm top diameter: 12 mm height: 20 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.