All three types of offensive grenades used the same body and had the same filling.
These are most common: M48BG grenade with M48fuze , M50BG grenade with M50 fuze and M62BG grenade with the M60fuze.
But they all fit eachother so all is possible.

Length: 102mm , diameter: 51mm.
Weight: 220gram including 95gram TNT/Potassium Nitrate.

Early grenades are painted light with a red filling ring, later models were dark green with yellow markings.