Over-all length with gaine: 59/64 inch.

Threaded length: 1/4 inch.

Number of threads: 6.

Construction: This is an air-column fuze with a one-piece metal alloy body. Threaded into the base of the fuze is a gaine above which is an air column sealed at the top by a closing disk.

Operation: There are no arming features in this fuze. On impact, the closing disk, is crushed inward, compressing the air in the column and firing the gaine.

Figure 318 – Type 2 Modified Small Instantaneous Fuze.