MIL-C-60983C (PA)
4.4.3 Testing.-
4.4.3.1 Check test for deterioration of primers (See MIL-P
20444). -If the total time between original acceptance of any lot
and the assembly of that lot into the cartridge exceeds two (2)
years, or if the primers have been subjected to adverse conditions,
however brief, at any time since previous tests, the primer lot
shall be subjected to and must satisfactorily pass, the check
test for deterioration specified in MIL-P-20444. This test shall
be performed by the contractor on primers selected by the Government
inspector at the facility assembling the primers into cartridge
(See 6.6).
4.4.3.2 Holding fixture vent check. -The cartridge case holding
fixture used in the base plug insertion operation shall have its
air vents check per shift for any obstruction. If a vent is found
to be closed or clogged, the vent, shall be cleared and the previous
hour's production shall be x-rayed 100 percent to ensure that the
propellant charge cups have not been damaged. Cartridge cases
found to have damaged charge cups shall be classed defective and
removed from the lot.
4.4.3.3 Propellant weight of cartridge case. -The propellant
weight shall be determined and then check weighed 100 percent. The
check-weighing shall be accomplished independently of the original
weighing or determination, using a different balance from that
used to make the original weighing and if performed manually, shall
be performed by another operator. Any charge which falls to comply
with the requirement specified on Dwg. 8844609 shall be classified
defective and removed from the lot.
4.4.3.4 Propellant weight of cartridge case, Alternate method.-
At the start of production, three hundred eighty (380) consecutive
samples per station, per machine shall be selected and weighed 100
percent. All samples shall comply with the applicable drawing
requirement. If all samples comply with the drawing requirement,
five (5) samples, per station, per every two (2) hours production
shall be selected and the average weight of the five (5) samples must
meet the assessed mean propellant weight within ± 4 milligrams. If
the average weight fails the requirement, correction will be made
and three hundred eighty (380) consecutive samples weighed from that
station. If all meet the requirement the sampling every two (2) hours
will be resumed.
4.4.3.5 X-ray examination of fuze assemblies prior to assembling
to ball and skirt assembly(See Para. 3.7). -Each fuze assembly, prior
to assembling to ball and skirt assembly, shall be subjected to this
test. If any fuze assembly shows evidence of being improperly assembled,
having missing parts, being armed or partially armed, it shall be
classed defective and removed from the lot.
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