Bomb fuze M157 is an impact fuze of the direct arming vane type which functions at any angle of impact. It is used with bomb igniter M15 or M16 to allow a jettisonable aircraft fuel tank to be used as a fire bomb.
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)
OP 2216, Volume 1 - Aircraft Bombs, Fuzes, and Associated Components (1960)
TM 3-400, Chemical Bombs and Clusters (1957)
OP 1664, Volume 2 - US Explosive Ordnance (1947)
USNBD - Bombs and Fuzes, Pyrotechnics (1945)