1958 US Military NOS Hickok DC Amperes Gauge Ammeter # 8004802 Vehicle? Panel?

This is a/an NOS* Hickok DC Amperes Gauge Ammeter
that fit(s) the following applications:

We are unable to determine the correct<br />
applications for this gauge.<br />
<br />
From a box of gauges labeled with US<br />
"Department of the Army, Ordnance Corps"<br />
<br />
The O.D. on the body is 2.200" (hole size).<br />
Mounting hole measurements are 2.080" center-to-center.<br />
<br />
Label reads: Ammeter Part No. 8004802
Made in USA

Manufactured by Supreme Electronics Corp. Greenwood Mississippi
Part # 8004802
Condition is Used
This is an Original Factory Part