MIL-DTL-14857B
202
Hardware missing, loose, broken, or improperly engaged
Visual
203
Strapping missing, loose, broken, or improperly engaged
Visual
204
Contents of box exposed
Visual
205
Box damaged
Visual
206
Marking missing, incorrect or illegible
Visual
4.4 Inspection testing. The following tests shall be performed in accordance with the provisions of 4.5.
4.4.1 Hydros tatic pressure. Each chamber and cap shall be subjected to the hydrostatic pressure test.
Failure of any cap or chamber subassembly to comply with the requirement of 3.2 shall be cause for
rejection of the subassembly.
4.4.2 Protective finish. The number of units for protective finish tests shall be in accordance with the
applicable specification. Failure of any unit in the inspection sample to comply with the requirements of
the applicable specification shall be cause for rejection of the lot.
4.4.3 Residual magnetism. Each assembly shall be subjected to the test for excessive residual magnetism
specified in 4.5.3. Failure of any unit in the inspection sample to comply with the requirement of 3.4 shall
be cause for rejection of the assembly.
4.4.4 Shear pin strength. Fifty pins from each lot of shear pins shall be tested for shear strength. Failure
of any pin to comply with the requirement of 3.5 shall be cause for rejection of the lot.
4.5 Test methods and procedures.
4.5.1 Hydrostatic pressure. Prior to the application of protective finish, the cap and chamber shall be
mounted in the device, using a fixture for properly sealing all openings and subjected to the internal
hydrostatic pressure to determine compliance with the requirement of 3.2.
4.5.2 Protective finish. Test procedures for protective finish shall be in accordance with the applicable
specification referenced on the applicable drawing.
4.5.3 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
and at the same height as the compass, in a north-south horizontal position (cap 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 moved slowly back past the compass. This procedure shall be repeated for each 90
degree rotation of the assembly for four full passes.
4.5.4 Shear pin strength. After application of protective finish, the pin shall be subjected to the shear pin
strength test to determine compliance with 3.5. The test shall be performed in a fixture in conjunction
with a tensile testing machine.
4.6 Inspection of packaging. The sampling and inspection of the packaging, packing, and container
marking shall be in accordance with the requirements of section 5.
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