What is he correct spark plug gap for a 4.75 hp Murray lawn mower?

According to Craftsman owner manual for 4.75 horsepower mower model 917.388920 spark plug RJ19LM the gap is .030.

Also: Oil type (API SG-SL) SAE 30 (above 32 F) and SAE SW-30 (below) 32 deq. F

Blade bolt torque 35-40 lbs.