Over-all length (with gaine): 2 1/8 inches.

Over-all length (without gaine): 1 9/16 inches.

Maximum diameter: 1 3/16 inches.

Threaded length: 5/8 inch.

Number of threads: 9 right-hand.

Construction:  This fuze is made of black steel in one piece. The rear end is drilled out to take the tracer. Housed in the forward part of the fuze and separated by a coiled spring, are a movable primer and a fixed firing pin. The firing pin contains a flash channel which leads to the explosive train. The gaine is threaded (R.H.) into the front of the fuze.

Operation: There are no arming features in this fuze. On impact, the primer moves down onto the firing pin. The resulting flash passes through a small hole beside the firing pin into the gaine.

Figure 338 – Mk 2 Small Base-Detonating Fuze.