Hi dv01,
to my knowledge, these "spacers" are attached
firmly to the
YAMAHA modules FL512M/FL1024M:
Neither in the Tyros5 Service Manual nor in the Owner's Manual of the YAMAHA Expansion Memory modules (FL512/FL1024) I could find further information about these spacers.
On the other hand, with the
MUTEC modules (a German Company) FMC-05, FMC-06 or FMC-07 (compatible with Tyros5) such spacers are attached
loosely:In the Installation Manual for the MUTEC modules the dimensions of these "spacers" are given as follows:
2 x spacers with
M4 inside & outside threading,
8mm heighthttps://www.mutec-net.com/downloads/manuals/MUTEC_FMC-05-06-07_DE_screen.pdfhttps://www.mutec-net.com/product_fmc-567.php#downloadUnfortunately, I can NOT give a guarantee that the dimensions of this "MUTEC" spacers will work for you.
Best regards,
Chris