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|  MIL-D-60572B
4.1.3 Inspections. Inspections shall be in accordance with MIL-A-2550 and MIL-STD-453.
4.2 Classification of inspections. The inspection requirements specified herein are classified as follows:
a.
First article inspection (see 4.4)
b.
Quality conformance inspection (see 4.5)
4.3 Inspection conditions. Unless otherwise specified in the contract or purchase order (see 6.2), inspection
conditions shall be as follows:
a.
Temperature: Room ambient 20 to 25 C (68 to 77 F)
b.
Altitude: Sea level
c.
Humidity: 50 percent relative, maximum
d.
Atmospheric: 14.7 psia
4.4 First article inspection. At the beginning of regular production, the contractor shall submit a first article
sample to a Government approved facility for evaluation. The sample shall consist of 23 delay bodies, 23
ignition device retainers, 21 units for ballistics, to be tested as indicated in table II, and 10 sets of unassembled
components (including explosive components) for visual and dimensional examination. 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 ignition device, propellant, or igniter lot after initial production, 12 assembled delay
elements from the first production lot thereafter shall be tested in accordance with 4.7.5. The Government
reserves the right to require new first article samples until such time as an acceptable sample is submitted (see
6.3).
TABLE II. First article inspection.
Paragraph
Type of test
Test
Sample size
Requirement
Test
Destructive
Nondestructive
3.4.2
4.7.2
Protective finish
23 Delay bodies
X
-
23 Ignition device
X
-
retainers
3.5.2
4.7.4
Vibration
12 from Ballistics
-
X
sample
3.6
4.7.5
Function tests
21
X
-
5
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