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Extreme operating temperatures. |
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|  MIL-M-45628E(MU)
PACKAGING DATA SHEET
8620000
Packaging of Mount, Periscope: M115
(Copies os specifications, standards, drawings and publications required
by the suppliers in connection with specific procurement functions should
be obtained from the procuring activity or as directed by the contracting
officer.)
3. REQUIREMENTS
3.1 Materials.- Materials shall be in accordance with drawings,
material specifications, and general specifications forming a part of
this specification.
3.2 Fabrication.- The mount shall be manufactured in accordance with
Drawing F8620000, "Mount, Periscope: M115" and all drawings pertaining
thereto.
3.3 General specification.- The contractor shall be responsible for
adherence to, and compliance with the following requirements of MIL-F-
13926:
a.
Order of precedence
b.
Dimensions and tolerances
c.
Inorganic protective surface finishes
d.
Part identification and marking
e.
Workmanship
3.4 Environmental.
3.4.1 Vibration. - The mount shall be vibrated in a vertical plane
at a constant frequency of 30 cycles per second (CPS) with an amplitude
of 1/16 inch (1/8 inch total excursion) for a period of 5 minutes, plus
or minus 15 seconds. Subsequent to vibration the mount shall show no
evidence of loose parts or failure to operate. The headrest assembly
shall not have changed position from it's original settings and the mount
shall meet all other requirements of this specification.
3.4.2 Extreme operating temperatures.- The mount shall meet all the
operability requirements of 3.6.1, 3.6.2, 3.6.3 and 3.6.4 while exposed
and thermally stabilized at -40 and +150F.
3.5 Orientation. - The mount shall include the shield, cover and
headrest assembly. The locating surface of the mounting flange of the
mount shall be secured in a horizontal plane as shown on Assembly Drawing
F8620000.
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