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|  MIL-P-46322B(MU)
DRAWINGS
U.S. Army, Frankford Arsenal
F7560085
Fixture, Vibration
D7560124
Milli-Dioptometer 20X
F7645543
Periscope Tank: M42
F8565556
Pressure Tester-Two Station
PACKAGING DATA SHEET
7645543
Packaging of Periscope Tank: M42
(Copies of specifications, standards, drawings and packaging data sheets
required by 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 Fabrication.- The periscope shall be manufactured in accordance
with Drawing and drawings pertaining thereto.
3.2 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.
3.3 Environmental.
3.3.1 Storage temperatures.- The periscope shall show no evidence
of damage or physical failure and shall meet the requirements of this
specification at a standard ambient temperature of between +60 and +90
Fahrenheit (F) after having been exposed to, and thermally stabilized at,
-80 and +160F.
3.3.2 Vibration.- The periscope shall be vibrated at a frequency of
30 cycles per and an amplitude of 1/16 inch (1/8 inch total
excursion) for a period of 5 minutes 15 seconds. Subsequent to vibration
there shall be no evidence of damage or physical failure and the periscope
shall meet the following requirements of this specification.
3.4 Cleanliness.- The periscope shall meet the cleanliness require-,
ments of MIL-O-13830 and, in addition, the periscope shall not contain
more than 6 particles of dirt. No particle shall be in excess of the area
equivalent to a size 50 dig.
2
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