Altec 1569a power switch replacement

Hi, hoping someone can recommend / link a replacement part to suit this 2 pole switch from an old Altec 1569a?

Sure it must be simple but i cant find an exact part and would like to make sure since i probably have to order this from overseas that i get the right part.

From what i can make out the part reads Clarostat 6507 12536-1 140 and has a d-shaft. (many images attached)

thanks!

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