
Point Detonating Fuze M557 is a selective superquick or 0.05 second delay impact fuze designed for use in ammunition for guns of 75mm through 155mm, for rifles of 75mm and 105mm, for howitzers of 75mm through 8-inch, and for 4.2-inch mortars.
No information about functioning.
No information about hazardous components.
Explosive Ordnance Guide for Ukraine, Second Edition (2022)
Iraq Ordnance Identification Guide (2004)
Afghanistan Ordnance ID Guide, Volume 1 (2004)
TM 43-0001-28, Artillery Ammunition (chg 11, 2003)
TM 9-1300-203, Artillery Ammunition (1967)