MV-5 diodes in Hitachi amplifier pwr ckt

I might need a replacements for “MV-5” diode. The “MV-5” may be an internal HITACHI part/model number that HITACHI used in their audio pwr amp ckts.
What are DigiKey options as subs for these diodes?
See my Reddit post here, with schematics and photos:
https://www.reddit.com/r/audiorepair/comments/1gg8x19/mv5_diodes_in_amplifier_pwr_ckt_what_are_their/

Add images

Add images

Add images