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| U.S. EXPLOSIVE ORDNANCE |
| PART 1 - PROJECTILES, PROPELLANT, AND PROECTILE FUZES |
| Chapter 3 - PROJECTILE FUZES |
| Section 2 - POINT DETONATING FUZES FOR PROJECTILIES |
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M75 |
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Projectiles used in |
20-mm (Army) H.E.-I. M97 |
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Over-all length, inches |
1.20 |
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Diameter at base of ogive, inch |
0.64 |
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Threaded length, inch |
0.20 |
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Threads |
7 R.H. |
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Weight, pound |
0.0497 |
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Material |
Brass |
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Filling |
Detonator - mercury fulminate |
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Relay charge - lead azide |
| Booster - tetryl |
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Description: This fuze is designed to function with instantaneous action on impact with light material surfaces. The fuze is initiated on impact by the set-forward motion of the detonator charge, or by pieces of metal from the body striking the detonator charge. |
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The fuze has two major parts, a body with an air space in the fore part of the fuze, and a magazone containing the explosive train, screwed into the base of the body. |
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Remarks: The fuze contains no interruptors or other safety devices and is, therefore, sensitive for handling. |
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Figure 87. Point Detonating Fuze M75 |
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