The Military does not and has not used the Centering washers, the Civy Shop manual shows them for the H1. My Civy manual is 1995. The Centering washers were used on Early Civy 12 bolt rims, most likely to get them as true as possible, I have NEVER seen on any Mil HMMWV since I started driving them
in 85. I have a set up 12 bolts rims with Radial GSA's and they have the centering washers, those rims and tires came of a 95 Hummer I had.
I have all my 12 bolt rims with MT's static balanced and the Weights installed on the inside of the Rim. Many many times I had the Lead weight torn off while off roading in Rock and loose soil, Makes for a **** of a ride home when ur missing an ounce of lead.