Husqvarna Screw Type Question

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hacskaroly

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Does anyone have any information (website, pdf, ...etc) that helps explain the Husqvarna parts number system, for example: 725 53 45-55. This number is for a carburetor/intake elbow screw on a 2100CD. I have found on another website that this part number references to a "Mc6s 5x65", I am not sure what the "Mc6s" stands for, but I am guessing the 5x65 is M5 screw by 65 mm long. Hopefully someone can correct me if I am wrong.

Going back to the part numbers, there are two other screws associated with the carburetor assembly, 725 52 87-55 and 725 53 33-55. To really "screw" things up for me, another screw on the diagram has a part number of 501 43 55-01. Again, I am guessing that this correlates to a Group-Type-sub type-part format, similar to what Stihl uses, but I have not found anything that explains it. Some of these screws I am looking for are discontinued and I am trying to find their dimensions to see if I can find a suitable sub where possible.
 
If you plug those PNs into Partstree, you will get a description of the screw (dia and length) and a pic. The pic will show the head type. Once you know those three things, it should be easy to find screws.

I think Husky only uses one pitch per size-screw for machine screws (i.e., there are not fine and coarse pitch machine screws).

There are, of course, those big-thread jobs for screwing into plastic.

https://www.partstree.com/parts/husqvarna-construction-725-53-33-55/
 

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