Description
Conical joint sleeve NS 5/13 is a standardised laboratory ground-joint component for interchangeable glassware connections in the NS system. Defined as a female socket (Hülse) to DIN 12249, it provides the conical interface needed to couple matching male cones of the same nominal size in modular apparatus. The NS 5/13 designation identifies a compact joint format suited to smaller-scale assemblies where space and bore must remain limited. Offered as a single piece from manufacturer Schlee, the sleeve supports routine build-up, repair and expansion of jointed glass setups used across general laboratory work. When mated with a corresponding NS 5/13 cone, the ground conical surfaces form a stable, reusable seal that helps maintain alignment of flasks, adapters and related components without non-standard fittings. Laboratories that maintain DIN-compliant glassware collections can integrate this socket directly into existing kits for teaching, preparation or analytical tasks. Clear size marking and adherence to the established NS geometry simplify selection and replacement. Packaged as one piece, the item is convenient for stocking individual joint sizes or completing incomplete apparatus sets.
This article belongs on Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Product type: Conical joint sleeve
- Joint size: NS 5/13
- Standard: DIN 12249
- Form: Socket (Hülse)
- Technical Information Sheet:
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Questions about Conical joints according DIN 12449, socket NS 5/13
What is this article?
Conical joints according DIN 12449, socket NS 5/13 is the article on this page. Luminix Health distributes Schlee for laboratory use. It sits in Distillation heads, adapters & columns, inside Distillation & extraction glassware, in Labware.
A still head, an adapter or a column is the glass between the boiling flask and the condenser. A Vigreux or packed column gives the vapour a surface so a closer-boiling mixture can separate. The joint sizes at both ends have to match the flask and the condenser.
Distillation separates liquids by boiling point. A condenser turns the vapour back into liquid: Liebig, coil and cold-finger shapes differ in how much cooling surface they offer. A still head and a column sit between the flask and the condenser. A Soxhlet extractor washes a solid again and again with the same solvent. Ground joints have a standard size, and the joint, not the flask, is what has to match. The pieces are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Distillation & extraction glassware. The sub-category is Distillation heads, adapters & columns. The catalogue is Labware.
Shelves beside this one are Condensers, Ground-joint glassware (other) and Soxhlet & extraction apparatus.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.