 |
|||
|
Page Title:
Moisture, fungus, and corrosion |
|
||
| ||||||||||
|
|  MIL-S-19819C(OS)
accordance with the applicable drawings, specifications, and publications
listed in LD 291401 or LD 480486.
3.2.4 Moisture, fungus, and corrosion. The firing switch shall be ren-
dered moisture, fungus, and corrosion resistant as required by OS 6341 and
in accordance with detail requirements specified in the drawings and speci-
fications listed in LD 291401 or LD 480486.
3.2.5 Marking. Marking of assemblies, subassemblies, and parts shall be
in accordance with the applicable drawings listed in LD 291401 or LD 480486.
3.2.6 Conflicting requirements. In the event of conflict between the
documents referenced herein and the contents of this specification, the con-
tents of this specification shall apply.
3.3 Definitions. The environmental requirements of this specification
are defined in MIL-T-18404.
3.4 Performance requirements and product characteristics. The firing
switch shall meet the following performance requirements and product char-
acteristics:
3.4.1 Ball staking. After the ball is staked in position during the as-
sembly of the weight base, the ball shall resist, without perceptible rota-
tion, a 2.5 inch-pound torque applied in either direction about the axis of
the shaft.
3.4.2 Pigtail wire securement. The pigtail wire, as secured in the weight
base by the bushing, shall withstand without loosening or separating from
the base a 1-pound pull applied along the axis of the weight base.
3.4.3 Airtightness. The firing switch subassembly, Drawing 1277873, shall
not leak air when the external air pressure is reduced to 15 inches of mer-
cury.
3.4.4 Sensitivity. When the firing switch is accelerated in such a direc-
tion that the ball is urged along the main axis toward the nose cap, the
switch shall not close with an applied acceleration up to 5.0 gravity units,
shall close instantaneously before the applied acceleration reaches 8.0
gravity units, and shall reach a state of steady closure before the applied
acceleration reaches 8.5 gravity units. Instantaneous closure shall be con-
sidered obtained when a pip is observed on the oscilloscope during testing
as specified in 4.4.4.4.3. Steady closure shall be considered obtained
when a straight line (with possible hash due to equipment circuitry) is ob-
served on the same oscilloscope screen. When the switch is accelerated in
a direction perpendicular to the main axis, it shall not close with an ap-
plied acceleration up to 3.5 gravity units, shall close instantaneously
4
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals