MIL-DTL-9415B
3.4.1.7 Cone protection. Screens shall be provided on both sides of the cone as a protection against physical
damage which may be caused by handling or gun blast. The protective screens shall exclude spherical particles
having a diameter greater than .156 inch (3.96 mm).
3.4.1.8 Housing. The housing shall be specified on figure 3.
3.4.1.8.1 Acoustic dampener. An acoustic dampener of superfine fiber glass shall be secured to the housing.
This dampener shall be secured in such a manner that it does not become loose or damaged during or after any or all
of the tests specified herein.
Inches
mm
Inches
mm
Inches
mm
Inches
mm
.016
0.406
.344
8.738
1.563
39.700
3.625
92.075
.031
0.787
.469
11.913
1.813
46.050
3.656
92.862
.064
1.626
1.016
25.806
2.00
50.8
3.813
96.850
.144
3.658
1.125
28.575
2.165
54.991
4.330
109.982
.188
4.776
1.343
34.112
2.687
68.250
6.875
174.625
.266
6.756
1.344
34.138
2.875
73.025
7.003
177.876
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. Unless otherwise specified tolerances are. .XX ± .02 (.5mm), .XXX ± .005 (.13mm), angles ± 2º.
FIGURE 3. Housing.
5
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