. "Assistant Director of Naval Ordnance" . "Department of the Director of Naval Ordnance" . "Deputy Director of Naval Ordnance" . . . "Naval Ordnance Department#Deputy Directors of Naval Ordnance" . . "Naval Ordnance Department#Directors of Naval Ordnance and Torpedoes" . "1958" . . . "Director of Heavy Ordnance" . "Naval Ordnance Department#Assistant Directors of Torpedoes" . . . . . . . "Naval Ordnance Department" . . "Director of Naval Ordnance" . . . . . . . . . . . . . "Department of Naval Ordnance" . "1891" . "Naval Ordnance Department" . "Naval Ordnance Department#Directors of Naval Ordnance" . . . . . . . . "Naval Ordnance Department#Assistant Directors of Naval Ordnance" . .