Igniter M23 is used with fire bomb M116A1 and M116A2. It is cylindrical in shape, rounded at one end and externally threaded at the other. A fuze well is located in the rounded end of the igniter. A fuze adapter, threaded internally to receive bomb fuze igniter M173, is threaded externally for attachment to the igniter. The igniter body is filled with white phosphorus (WP) and a filler plug is inserted in the filler hole when the igniter is loaded.
Igniter AN-M23A1 is identical to igniter M23 except that the M23 has a fuse adapter. The fuze well of igniter AN-M23A1 is threaded to receive bomb fuze AN-M173A1. The well of igniter M23 is threaded to receive bomb fuze M173.
WP, 1.25 lbs
Bomb, 750 lb Fire, M116A1, M116A2
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)