Several times while modelling an mechanical or any industrial part it is simple to design some of its part but some complicated to design several parts, so for this there are two option available in fusion 360, these option are Add ins and add manufactured part in insert command list.
For several demand of manufactured products, sometimes it is not easy to withdraw a part from net into manufactured part, and the large parts are not available in Add ins, so for this problem there is a idea that in small in-update of fusion 360. These inserted part are components which should be converted to body when needed.
in this update there would be a combined click for the manufactured part that should be injected in add ins so that some important parts are not be needed to inserted from online services.
There is hotch-potch due to the large number of parts because the command of the inserting a manufactured part includes about 350 companies which have about 250 parts in their services. So there about 87,500 manufactured parts available there.
Some more about this post, this manufactured part are copyrighted and have intellectual property right so this should not be posted on the autodesk gallery page of anyone directly.