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Page Title:
Dimensional control of molded or plastic parts |
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|  MIL-S-63302 (AR)
If any defective parts are found during qualification of the
tool, the tool producing the defective part(s) shall not be used
in production.
If any defective parts are found when inspection is performed
for control of the tool, the tool producing the defective part(s)
shall be removed from production. Further, that portion of
production since the last tool control check shall be returned to
the contractor for corrective action.
All tools 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.
Those features of a part which are subsequently
NOTE 1:
machined or otherwise worked upon to meet its
drawing requirements shall be inspected in
accordance with the classificationof defects. A
list of these features shall be supplied with the
first article sample.
4.5.3 Dimensional control of molded or plastic parts. In
place of normal sampling and inspections associated with the
Classification of Defects, and after a curing time for the parts
has been approved (See Note 1) and with the approval of the
Contracting officer 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 (See Note 2). 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 pertinent paragraphs of 4.4.2. 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(s) 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(s) 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.
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