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|  MIL-C-46946B(OS)
selected from ballistic samples), 5 assembled cartridges for sealant tests, 10 sets of unassembled
componentsfor dimensional and visual examination, and a quantity in accordance with 4.4.2, i.e.,
cartridges assembled without the igniter and propellant charge for primer sensitivity test. The
first article sample shall be manufactured using the same materials, equipment, processes, and
procedures as used in regular production. All parts and materials, including packaging and
packing, shall be the same as used for regular production and shall be obtained from the same
source of supply. When it becomes necessary to make a change in either the primer, propellant, or
igniter lot after initial production, 12 assembled cartridges from the first production lot
thereafter shall be tested in accordance with 4.7.7. The Government reserves the right to require
new first article samples until an acceptable sample is submitted (see 6.3).
4.4.1 Examination, tests, and facility. After provisional acceptance at source, the sample
shall be inspected for all requirements of the drawings and specifications at a Government
laboratory or other such facility specified in the contract (see 6.2).
4.4.2 Sample size for primer sensitivity. The number of cartridges assembled without igniter
or propellant to be submitted for primer sensitivity tests shall be in accordance with table I.
TABLE I. Primer sensitivity.
Lot Size
Sample Size
3 to 15
3
16 to 25
4
26 to 40
5
41 to 65
7
66 to 110
10
111 to 180
15
181 to 300
25
301 to 500
30
501 to 800
35
801 to 1300
40
Over 1300
50
4.4.3 Temperature conditioning for ballistic test. The sample shall be temperature
conditioned and tested to determine compliance with 3.6.2.2. The sample for firing shall be
conditioned to table II.
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