Description
Replacement plug NS 12,5 solid is a compact solid ground-joint spare plug for laboratory stopcocks and small glass apparatus using an NS 12,5 joint. It features a 2,5 mm bore for controlled passage of liquids or gases in analytical and preparative workflows. The solid body provides a stable sealing surface and dimensional consistency when replacing worn stopcock plugs in fine glassware assemblies. Suitable for maintenance of stopcocks on flasks, adapters and manifold components, it helps restore reliable joint fit and defined flow without altering the original apparatus geometry. Offered as one piece with a net weight of 0,012 kg from manufacturer Witeg, this spare plug supports routine laboratory glass service where a small NS joint and narrow bore are specified. Its solid construction is intended for repeated handling in chemical and life-science labs that depend on precise ground-joint connections.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Type: Solid NS replacement plug
- Joint size: NS 12,5
- Bore: 2,5 mm
- Construction: Solid
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Questions about ST-seperate plug ST 12,5 solid
What is this article?
ST-seperate plug ST 12,5 solid is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
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 Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone 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.