UFGS 27 51 23.10 Intercommunication System  

History: Below is a listing of the Revisions and Changes made to this UFGS.

KEY PREPARING ACTIVITY (PA) A Army N Navy F Air Force S NASA
ACTION N New R Revision C Change D Deletion
Release PA Action Change # Nature of Change or Revision
May-2011 A N

Renumbered/Superseding UFGS 33 82 01 without revision to comply with MF 2010