Almost all (if not all) B&S engines have a .030 plug gap.
0.020
.030
.30 thousands
0.030 is the gap for briggs and stratton 4.5 hp mower
not getting fire 4.75 briggs statton lawn mower
What is the gap on the spark plug on a Brigg's stratton lawn mower Model#31P777 Type 0348E1?
30/1000's
American noodles are yummy, but you sound yummier
take the old plug to a mower parts store & tell them you need a matching one for a push mower
You can set most plugs at .030 and be safe.
.32
A Champion CJ8Y or J19LM will perform fine