Description
Ground joint cap NS 14,5/23 is a laboratory glassware fitting designed to close standard conical ground joints of size NS 14,5/23. Made from borosilicate glass 3.3, it offers the chemical resistance and thermal stability expected of this glass type in everyday scientific work. With a net weight of 0,008 kg, the compact cap is easy to handle and store with other jointed apparatus. Classed as an adapter, it seals unused ports on multi-neck flasks, condensers or intermediate connectors during synthesis, distillation or sample preparation. The standardised NS 14,5/23 geometry ensures interchangeability with matching male joints from common European glassware ranges. This ground joint cap from manufacturer Rettberg carries the Rettberg ® mark and originates from Germany. Research, teaching and quality-control laboratories that rely on durable borosilicate components will find the single-piece unit a practical accessory for keeping systems closed and protecting joint surfaces when openings are not in active use. Pack size is one piece, ready for immediate incorporation into existing setups.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Joint size: NS 14,5/23
- Material: Borosilicate glass 3.3
- Product type: Adapter
- Country of origin: Germany
- Technical Information Sheet:
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Questions about Blind cap, socket size 14,5/23
What is this article?
Blind cap, socket size 14,5/23 is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
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 Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, 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.