MIL-DTL-62270B(AT)
4.3 Conformance inspection. Conformance inspection shall include the examinations and
tests specified in 4.3.2 and 4.3.3.
4.3.1 Sampling. Samples from an inspection lot for conformance inspection shall be
selected in accordance with the contract (see 6.2). Any redesign or modification of the
contractor's standard to comply with specified requirements shall receive particular attention for
adequacy and suitability. This element of inspection shall encompass all visual examinations and
dimensional measurements. Noncompliance with any specified requirement or presence of one or
more defects preventing or lessening maximum efficiency shall constitute cause for rejection.
4.3.2 Examinations. Visual, dimensional, and primary functional examination shall consist
of examination of the chassis for conformance to applicable drawings and this specification.
Examinations shall be performed against the classification of defects specified in table III. The
following constitutes a part of the classification of defects (see 6.3.1):
a. Any weep constitutes a minor defect.
b. Any seep constitutes a minor defect.
c. Any drip constitutes a major defect when the vehicle has been standing idle and
the components are at ambient temperature.
d. Any droplet that occurs at a static fit, metal to metal or gasket combination shall
constitute a major defect.
4.3.3 Acceptance tests. To determine conformance to section 3 (inclusive), the
contractor shall subject each chassis to the acceptance tests specified in table IV. After the tests,
the chassis shall be examined for evidence of fuel or lubricant leakage or other defects.
4.4 Verification methods. Acceptable verification methods included in this section are
visual inspection and measurement, sample tests, full-scale demonstration tests, simulation,
modeling, engineering evaluation, component properties analysis, and similarity to
previously-approved or previously-qualified designs.
4.4.1 Verification alternatives. The manufacturer may propose alternative test methods,
techniques, or equipment, including the application of statistical process control, tool control, or
cost effective sampling procedures to verify performance. See the contract for alternatives that
replace verification methods required by this specification.
4.5 Inspection conditions (test profile). The test chassis shall be subjected to all tests
specified herein and then to four repetitions of the 1000 mile cycle contained in table V.
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