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|  MIL-T-50384(MU)
DESCRIPTION
NOMENCLATURE
Standard type conforming to the
1. Hot and cold chamber
accuracies outlined in test facili-
ties specified under test facilities
of MIL-F-13926
Standard shop type to provide a 3 VDC
2.
Power supply
output, within 10% accuracy
Standard shop type accurate to within
3.
Torque wrench
10% of drawing tolerance
4.6 Test methods and procedures.
4.6.1 Environmental.
4.6.1.1 Temperature test. - The telescope shall be subjected to Test
Procedure I of MIL-F-13926; however, the temperatures specified in 3.4.1
and 3.4.2 shall apply. When the item under test has been stabilized at
the temperature specified, the result of the specified test shall conform
to the limits outlined in 3.4.1 and 3.4.2 using test procedures outlined
herein.
4.6.1.2 Sealing. - This test shall be performed on a 100% inspection
basis using testing equipment the accuracy of which shall conform to the
accuracy depicted on Drawing F8565556. When using pressure test fixture,
the fixture shall be set-up as outlined in set-up instructions shown on
Drawing F8565556. The gas used shall be dry nitrogen having a dew point
of -258F. After connecting the test equipment to the unit under test,
adjust the pressure to the pressure specified in 3.7 and maintain the
pressure for the time specified in 3.7. Pressure to remain constant to
assure compliance with 3.7. At the completion of the test, connect a dew
point tester to the exit port and purge the unit under test until -25F is
recorded and seal the unit after adjusting the internal pressure in the
unit to the value specified in 3.7. Record this internal pressure.
4.6.1.2.1 Internal pressure. - This test to be performed using
standard shop type pressure gage and standard shop type inspection
techniques. This test to be performed on a 100% inspection basis just
prior to packaging. Any unit found not containing the internal pressure
recorded in 4.6.1.2 shall be rejected and repressurized and retested in
accordance with 4.6.1.2. All retested units shall be set aside for a
minimum of 12 hours and then retested for internal pressure in accordance
with 3.7. Should the unit fail the second test, the unit is to be
considered rejected.
4.6.2 Performance.
4.6.2.1 Orientation. - Position Fixture F7573980 in accordance with
set-up instructions outlined on the drawing and position and secure Adapter
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