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Ordnance, Explosives, and Related Items

 

1090-0770

Description

The Mechanical Impact Fuze M170 duplicates the AN-M120A1 in all respects except for the arming time, which is shortened to 1.5 (± 0.15) seconds in the M170.

The M120 and AN-M120 did not have the clockwork regulator, and had an arming time of 2.5 (±0.25) seconds; hence, attacks had to be made at higher levels. External appearance of all designs is the same.

This fuze replaced the AN-M104 in the parachute fragmentation bomb.

The M170 is designed to supplant the AN-M120A1 in all bombs receiving the AN-M120A1, except for the 120 pound Para. Frag. Bomb M86, which will continue to use the older fuze

Functioning

No information about functioning.

Hazardous Components

No information about hazardous components.

See Also

Bomb, 120 lb Frag, M86

Nose, Impact, AN-M120A1

Source(s)

MIL-HDBK-146, Fuze Catalog (1982)

TM 9-1385-51, Ammunition (Conventional) for Explosive Ordnance Disposal (1967)

OP 1664, Volume 2 - US Explosive Ordnance (1947)

USNBD - Bombs and Fuzes, Pyrotechnics (1945)