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204
Marking missing, incorrect, or illegible
Visual
205
Tape incomplete
Visual
4.7 Test methods and procedures.
4.7.1 Primer x-ray. Prior to assembly into the cartridge, the primer shall be radiographically examined
in accordance with MIL-STD-453. Each primer shall be x-rayed on boards or trays with the cup side
perpendicular to the rays. The x-ray negatives shall be identified by item nomenclature and by lot number.
Primers are to be left mounted to the boards or trays until after the x-rays have been reviewed and defects
identified to facilitate removal of defective units. After screening, the x-ray negatives with defectives
identified, shall be forwarded to the engineering activity designated by the acquiring activity. Interpretation
of the radiographic films shall verify the following:
Presence of Primer Charge
No Material Defects
4.7.2 Hardness. Ten units from each heat-treated lot of components shall be tested with a hardness tester.
Failure of a unit to comply with the requirements of the drawings shall be cause for rejection of the lot of
components.
4.7.3 Protective finish. Unless otherwise specified (see 6.2), sampling plans and procedures in the
determination of acceptability of coated parts shall be in accordance with the provisions set forth in MIL-A-
8625.
4.7.4 Radiographic examination. All assembled cartridges shall be radiographically examined in
accordance with MIL-STD-453. The cartridges shall be positioned on their sides for the most revealing
exposure. All cartridges shall be identified with serial numbers prior to examination. The serial numbers shall
be in consecutive order beginning with the number 001 in each production lot. The cartridges shall be
arranged on trays or boards in consecutive numerical order, and each radiograph shall carry a permanent
identification of the cartridges displayed thereon. The radiograph plate identification shall include item
nomenclature, the complete lot number as stamped on the cartridges, the span of serial numbers displayed, and
the contract number. Cartridges having any observable imperfections in assembly shall be cause for rejection.
Radiographs of the entire production lot shall accompany the ballistic sample to the activity conducting the
production lot acceptance test. Discontinuities in serial numbers shall be identified on the x-ray negative.
Defective cartridges, found by the contractor, shall be clearly identified on the negative and those defectives
removed from the production lot. The serial numbers shall be pen or ink stamped on the cartridge with
approximately 1/8-inch-high characters. The serial numbers shall be located apart from the other cartridge
markings (see 6.2).
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