Unfortunately not it seems and the 6177B & 6177C manuals give no details as to the F.S.D. for 1120-1147.
The 1120 is the HP part code is used for meters of all kinds, there are different sizes & case styles, the actual movements were made in standard linear, centre zero & logarithmic types, also some of the voltmeter scales were individually calibrated to the meter movement.
But you might get lucky & find the PSUs use similar small panel meters, with a different scale, just make sure the size is correct to fit the front panel.
David