For 1964-73 Johnson/Evinrude 2-cyl, 9.5-10 Hp
Hub uses key 47-02357
ID: 14.29mm | OD: 57.15 mm
W: 22.225 mm | 6 blades

also crosses with:
Sierra: 18-3003
GLM: 89670
Mallory: 9-45218