UNO serial number 0408
UNO proper shipping name Fuzes, detonating
Premature functioning can occur when fuzes are fired in heavy rainfall.
Std AMCTC 7874 dtd 1970.
The aluminum fuze head contains a spring-loaded striker and firing pin. A spring-loaded cylindrical slider, mounted transversely in the aluminum fuze body, contains the detonator and is equipped with an O-ring pressure seal. Inbore safety is provided by a spring-loaded bore riding pin which locks the slider. A pull wire restrains the setback pin (not shown in illustration) which locks the bore riding pin..
Tape and a plastic disk protect the metering orifice. The fuze base contains a booster lead charge and a booster charge. An adapter assembly with two tetryl booster pellets and a cup or» pwttet are threaded to the base.
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