
Fuzes M504 Series are long contour, proximity fuzes provided for use with 120mm deep cavity, high explosive projectile M73, in antiaircraft fire. Bore safety is provided by an arming switch which delays arming of the fuze.
The T172 was the improved T75.
No information about functioning.
No information about hazardous components.
MIL-HDBK-146, Fuze Catalog (1982)
TM 9-1300-203, Artillery Ammunition (1967)
TM 9-1385-51, Ammunition (Conventional) for Explosive Ordnance Disposal (1967)