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|  MIL-S-63302(AR)
4.5 Test methods and procedures.
4.5.1 Dimensional control of cast parts. In place of the
normal sampling and inspections associated with the
Classification of Defects, and with the approval of the
Contracting Officer, a sample of at least three (3) parts (as
cast) from each cavity shall be fully inspected dimensionally to
qualify a new or reworked cavity for use in production or as a
control of the cavity during production (See Note 1). Inspection
for control of each cavity during production shall be performed
on the above quantities from each cavity after production of
5,000 parts or at the end of each week, whichever comes first.
Individual cavity identification must be provided.
If any defective parts are found during qualification of the
cavity, the cavity 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 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 corrective
action.
All cavities formerly removed from production because of some
fault, may, after reworking, be returned to production providing
they pass the qualification test specified above. The contractor
may request a change of inspection frequency providing he
presents objective evidence to substantiate the request to the
Contracting Officer.
NOTE 1:
Those features of a part which are subsequently
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.
4.5.2 Dimensional control of stamped parts. In place of the
normal sampling and inspection associated with the Classification
of Defects, and with the approval of the Contracting Officer a
sample of at least ten (10) parts shall be dimensionally
inspected to qualify the tool used in the stamping process for
use in production (See Note 1). In addition, a random sample of
five (5) parts shall be selected from the last portion of each
hour's production for dimensional inspection as a control of the
tool during production.
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