This is an NOS crank shaft nut for the 134L and 134F motors. These were bulk packed by the Military. Some are very clean and some have a little cosmoline left on them. These were originally made as replacements for the M38 and M38A1 but will fit the CJ2A, MB, GPW, CJ3A and CJ3B. I am sure there are many other applications for these as well. These are normally messed up by people trying to take them off with a screw driver and hammer. Don’t miss a NOS US made original.