This fuze is used for low level tactical bombing when a longer firing time delay is needed to assure that the releasing aircraft will be safe from the explosive envelope of the bomb prior to its initiation. Fuze M906 is used with the 750 pound general purpose bomb M117.
Delay element T5E3 or T6E4
Detonator M35
Booster M147 (external)
MIL-HDBK-146, Fuze Catalog (1982)
TM 9-1385-51, Ammunition (Conventional) for Explosive Ordnance Disposal (1967)
TM 9-1325-200, Bombs and Bomb Components (1966)