Description
Replacement plug NS12 solid is a solid glass stopcock plug intended for laboratory stopcocks conforming to NS 12,5 ground-joint dimensions. Featuring a bore of 1,6 mm and manufactured to DIN 12541, the solid plug provides a reliable sealing element for glass stopcocks used in vacuum lines, burettes and general laboratory apparatus. The compact component has a net weight of 0,012 kg and is supplied as a single spare part for maintenance or repair of existing glassware assemblies. Produced by Witeg, it matches standard European joint sizes so that worn or damaged plugs can be exchanged without replacing the entire stopcock body. The solid design ensures mechanical stability and a consistent sealing surface when properly greased and seated. Suitable for analytical and preparative laboratories that maintain interchangeable glass stopcock systems and require precise dimensional compatibility with NS 12,5 fittings.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: Solid replacement stopcock plug
- Joint size: NS 12,5
- Bore diameter: 1,6 mm
- Standard: DIN 12541
- Design: Solid (massiv)
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Questions about seperate plug ST 12,5 solid
What is this article?
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.