MIL-DTL-17191E(SH)
TABLE XI. Sampling for visual examination Continued.
Number of mounts in a lot
Number of mounts in a sample
501 to 800
50
801 to 1300
75
1301 to 3200
110
TABLE XII. Classification of defects.
Category
Defects
Major:
101
Evidence of unauthorized materials, including lack of documentation demonstrating
components were produced in accordance with material specifications listed in
803-1385777 and acquisition requirements.
102
Mount dimensions, materials, and construction not in accordance with 803-1385777 and
acquisition requirements.
103
Evidence of delamination or air pockets in resilient element.
104
Evidence of backrinding, blisters, cracks, debonding, breaks, deep gouges, tears, voids,
blisters, or other imperfections on the surface of resilient element that can affect mount
performance and service life.
105
Mounts with cure dates more than 2 years old shall not be offered.
106
Any other defect that could affect mount performance or service life.
Minor:
201
Identification marking not distinct or in accordance with 803-1385777.
202
Burrs, rough edges, and sharp corners not removed.
203
Minor surface imperfections on the rubber that will not affect mount performance or
service life.
204
Any other negligible defect which would not affect the performance or serviceability of
the mount.
4.3.3.2 Sampling for conformance testing. For each lot, a quantity of mounts sampled in accordance with
table XIII shall be subjected to verification tests in table XIV to determine compliance with 3.4.2 and 3.4.3. Tests
shall be conducted in the sequence shown in table XIV. If one or more defects are found in any sample, the entire
lot shall be rejected. The manufacturer has the option of screening the entire lot for compliance with the dynamic
stiffness requirement only if the axial strength requirement has been met for the sampled quantity.
TABLE XIII. Sampling for conformance tests.
Number of mounts in a lot
Sample quantity
65 and under
4
66 to 110
5
111 to 180
6
8
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