Mk 18 Mods 0-4 (Obsolste)Mk 25 Mods 0-3
U.S. EXPLOSIVE ORDNANCE
PART 1 - PROJECTILES, PROPELLANT,
AND PROECTILE FUZES
Chapter 3 - PROJECTILE FUZES
Section 3 - NOSE TIME FUZES FOR PROJECTILES

Mk 22 Mods 0-6 (Obsolste)

Projectiles used in

3"/23/50 A.A. and Ill.
  4"/50 H.C.

Over-all length, inches

4.55

Diameter at base ogive, inch

2.4

Threaded length, inch

0.81

Threads

7 R.H.

Material

Upper body - zinc/lead alloy

 

Center body - brass

 

Base - aluminum

Setting times, seconds

Mods 0-3 - minimum, 1.4

 

maximum, 30

  Mods 4-6 - minimum, 0.6
 

maximum, 30

Description: The mechanism for this fuze is very similar to that described for the Nose Time Fuze Mk 18. In the Mk 22, however, the centrifugal weights do not have "kick-off" springs, and the Mk 22 is slot-set instead of lug-set, as the Mk 18. Also, the Mk 22 is very similar to the Army M43A3.

Mods 4, 5, and 6 are identical, but are made by different manufactures.

Figure 91. Nose Time Fuze Mk 22

Mk 18 Mods 0-4 (Obsolste)Mk 25 Mods 0-3