Short answer? I think the thread attachments are different sizes.
You might try rec.photo.equipment.35mm or
http://groups.yahoo.com/group/Nikon_FM2/ or
http://groups.yahoo.com/group/NikonMF/ or
http://groups.yahoo.com/group/NikonRepair/
good people and always good info.

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darkroommike
> Does anyone know if a model F right-angle viewing attachment will fit a
> Nikon FM2?
[quoted text clipped - 4 lines]
>
> Nat
nat - 08 Mar 2006 18:12 GMT
> You might try rec.photo.equipment.35mm or
> http://groups.yahoo.com/group/Nikon_FM2/ or
> http://groups.yahoo.com/group/NikonMF/ or
> http://groups.yahoo.com/group/NikonRepair/
> good people and always good info.
Thanks Mike....much appreciated.
Nat