Description
Hollow hexagonal stopper NS 10/19 in Boro 3.3 is a laboratory glassware component for closing standard ground joints on flasks, adapters and related apparatus. The stopper is formed from borosilicate glass 3.3 and features a hollow body with a hexagonal head that improves grip during insertion and removal. The NS 10/19 joint size matches common European taper dimensions used throughout analytical and preparative glassware. Hollow construction keeps the piece light while preserving the sealing geometry required for routine joint assemblies. Packs of 100 pieces from manufacturer Hecht support continuous laboratory supply for teaching, quality-control and research workflows. The hexagonal profile helps apply even seating force without stressing the ground surface, and the Boro 3.3 material is the established glass type specified for many laboratory stoppers and fittings. These stoppers integrate directly into existing NS joint systems and are suited to everyday sealing tasks where a durable, reusable glass closure is preferred over disposable alternatives.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Type: Hollow hexagonal stopper
- Material: Boro 3.3
- Joint size: NS 10/19
- Design: Hexagonal head
- Construction: Hollow
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Questions about Hollow glass stoppers hexagonal, Boro 3.3, Size: NS 10/19
What is this article?
Hollow glass stoppers hexagonal, Boro 3.3, Size: NS 10/19 is the article on this page. Luminix Health distributes Hecht 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. Delivery across Europe, two to five days when in stock. 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.
