Description
The Nose Time Fuzes Mk 50 and Mk 51 are merely moisture resistant versions of the Nose Time Fuzes Mk 18 Mods 2, 3, and 4 and Mk 22 Mods 4, 5, and 6, respectively. The size, operation, component parts (except as noted below), firing train, and setting times are identical to those of the Nose Time Fuzes Mk 18 and Mk 22.
The following developments prolong the life of the mechanism and the explosive. A silica gel bag to absorb moisture is placed in the base cavity of the fuze. Special gaskets are placed between the upper cap and the lower cap, and between the lower cap and the body. The joint between the upper cap and the lower cap is coated with bakelite varnish. The primer unit ends are covered with bakelite varnish. Thread luting compound is applied to the joint between the body and the bottom closing screw. The brass disc at the center of the bottom closing screw is crimped in under a washer and then coated with bakelite varnish. All screw heads visible on the outside are coated with glyptol lacquer.
Different modifications of these fuzes indicate nothing more than different manufacturers.
Functioning
No information about functioning.
Hazardous Components
No information about hazardous components.
See Also
Source(s)
OP 1664, Volume 1 - US Explosive Ordnance (1947)
MIL-HDBK-146, Fuze Catalog (1982)
