To accommodate shrinking products where small size is critical to the product's success, Beswick Engineering introduced an ultra-miniature M3 threaded quick disconnect assembly for air or fluids.
The assembly's brass internal end and a stainless-steel external end weigh only 3.4 gm. The 16.7-mm long, 6-mm hexagonal body internal end has a M3 internal thread and an automatic shut-off valve. The 1-mm long, 5-mm hexagonal body
external end has a M3 external thread and includes a captured O-ring seal for a leak-tight connection. The standard O-ring seal is Buna-N with potential optional materials including EPDM, Viton, Silicone, Chemraz and Fluorosilicone.
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 The M3 threaded disconnect has a knurled surface on the locking sleeve.
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Compared to its previous smallest product, the QDC-101, which was 1 ½-inches long with a 5/16 and 3/8-inch hex, the new connector is only 0.85-inch long. The tiny disconnect provides leak-tightness, durability and light weight capability for rapid set-up and breakdown of air or fluid lines. This simplifies component replacement required in applications that include fuel cells, medical and dental, instrumentation and semiconductor manufacturing equipment.
To better visualize this and its other fittings, Beswick now offers 3D models. The 3D models help engineers create end-product assemblies, check for potential interference points and develop assembly drawings for manufacturing. The 3D solid models are available in Initial Graphics Exchange Specification (IGES) format, but the company will continue to provide 2D drawings for customers who require that format. A link to the 3D models appears on each product's webpage or a group of models can be obtained by submitting an "Application Engineering Support" form on the "Contact Us" page.
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