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Dimensional control of molded or plastic parts. |
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|  MIL-M-70763 (AR)
4.4.3 Testing. Testing is described in the First Article and
Quality Conformance Inspection Tables.
4.4.4 Inspection equipment. The inspection equipment required
to perform the examinations and tests prescribed herein is described
in the "Paragraph Reference/Inspection Method" column in the tables
starting with 4.4.2.1. The contractor shall submit inspection
equipment designs to the Government for approval in accordance with
the terms of the contract. See Section 6 of MIL-A-48078.
4.4.5 Heat seal test. The contractor shall develop a heat seal
test to detect any air leakage into the sealed bag assemblies. As a
minimum the test shall be in accordance with the applicable test
specified in MIL-P-116. Any test plan used shall be submitted to:
ATTN: AMSMC-QAT-M (D), Picatinny Arsenal, NJ 07806-5000 for
approval.
4.5.1 Dimensional control of molded or plastic parts. In place
of the normal sampling and inspections associated with the
Classification of Defects, and after a curing time for the parts has
been approved (See Note 1) a sample of three (3) parts (as molded)
from each cavity shall be fully inspected dimensionally to qualify a
new or reworked cavity for use in production. The molded parts
shall carry the individual cavity identification. As a control of
each cavity during production, the above quantity of parts from each
cavity shall be inspected for at least the defects listed in 4.4.2.1
after continuous production of each 5,000 parts or at the end of
each week, whichever occurs first. Of the three (3) samples, one
(1) sample shall be the last part produced. If any defective parts
are found during qualification of the cavity, the cavity producing
the defective part will not be used in production. If any defective
parts are found when inspection is performed for the control of the
cavity, the cavity producing the defective part shall be removed
from production. Further, that portion of production since the last
control check shall be returned to the contractor for inspection for
each separate type of defect according to MIL-STD-105, using an AQL
of 0.40 percent for each major defect and an AQL of 0.65 percent for
each minor defect. All cavities removed from production because of
some fault, may, after reworking, be returned to production
providing they pass the qualification test above. The contractor
may request a change of inspection frequency providing he presents
objective evidence to the Contracting officer to substantiate the
request for a change of inspection frequency. Contractor designs of
gages and test equipment required to perform the inspections listed
herein shall be forwarded to ARDEC, ATTN: AMSMC-QAT-M (D) , for
approval prior to manufacture of equipment. The noted
sub-paragraphs identify those items and minimum inspections subject
to the requirements of this paragraph.
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