In the case of D-series connectors, I don't think
it's possible to
fit female contacts to a -P shell or male contacts to a -S shell.
Well, it's not possible in the sense that D-shell connectors are not
made so as to support that.
But I can't see any reason it couldn't be done if some connector maker
cared to bother. (The male-contact side of it would be rather
vulnerable to bent pins, since the pins would no longer have a shell to
protect them, so it might be stupid - but it could be done.)
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