MIL-T-45499C
4.2.3.1.2 Head and body. Each head and body assembly shall be subjected to a breakaway torque.
Failure of any assembly to comply with the requirements of column C, table I in 3.3 shall be cause for
rejection of the assembly.
4.2.3.2 Residual magnetism. Each assembly shall be subjected to the test for excessive residual
magnetism as specified in 4.3.3. Failure of any unit to comply with 3.5 shall be cause for rejection of the
assembly.
4.2.3.3 Structural strength. Each thruster shall be subjected to the structural strength test. Failure of
any unit to comply with the structural strength requirement of 3.4.1 shall be cause for rejection of the thruster.
4.2.3.4 Functional tests. The following tests shall be performed by the Government.
4.2.3.4.1 Ballistics. Twenty-one units shall be tested to determine compliance with 3.7. The units shall
be temperature conditioned as provided in table II and 4.3.5.2. Failure of any unit to comply with 3.7.1
through 3.7.5 shall be cause for rejection of the lot.
TABLE II. Conditioning temperature.
Sample size
Method
Temperature (·F)
7
Load (see 3.7.1)
·65 to ·70
7
Load (see 3.7.1)
65 to 75
7
Load (see 3.7.1)
195 to 205
4.2.3.4.2 Retest. There shall be no retests.
4.2.3.4.3 Test failure. If a test failure is attributable to an assignable cause, excluding the test thruster,
the original test results shall be discarded and that test reconducted.
4.3 Test methods and procedures.
4.3.1 Breakaway torque. A torque wrench, set at the torque requirements specified in table I, shall be
used in conjunction with a fixture to determine the adequacy of the joints.
4.3.2 Structural strength. The thruster shall be tested in a tensile testing machine or similar device by
the application of the static tensile load between the trunnion lugs and the end sleeve.
4.3.3 Residual magnetism. The assembly shall be tested for excessive residual magnetism using an
approved compass in an area free of local magnetic effects by placing the assembly 5 inches from the end at
the same height as the compass, in the north-south horizontal position (head end at south) with the compass
set in an east-west heading. The assembly shall be moved at a speed no greater than 10 feet per minute past
the compass for its entire length, rotated 90 degrees in the horizontal position about its longitudinal axis, and
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