This NCO sword looks genuine to me.
Aluminum tsuka (hilt)
Kashira (pommel) looks fine but has been cleaned or polished.
On the blade, Nagoya (NA) stamp after the blade number = 名
Correct fuchigane (hilt collar) stamps (3 of them)
Brass tsuba looks fine (I would have liked a better picture)
Habaki looks fine
Blade number = 136392 (correct for nagoya and brass tsuba - from 132666 to 137269)
Saya with screw on front side
Saya shoe with pronounced curvature
It all looks fine.
Personally, I do not like when the color of the tsuka is so aluminum. It always looks like it has been
cleaned of the brown colour coat of paint that was supposed to imitate the usual brown tissue wrapping (tsuka-ito)
of the shin-gunto.
I have seen black sayas in the past but this one could well have been repainted. Difficult to say.
It all depends on what you want.
It does not have that typical look and feel of this usual kind of NCO sword.
Will you enjoy the differences ? Will you always have a doubt it could be a fake ?
I know I would pass on it but this is me.
Benoit D