MIL-C-46221B
4.5.2 Examination and tests. The quality conformance sample shall be subjected to the examinations
of 4.6 and all the test procedures of 4.7 except for 4.7.7.
4.6 Examination. All cartridges and components shall be examined visually and radiographically and
characteristics defined in accordance with the applicable drawings. One hundred percent examination shall
be performed for all critical defects. Examination for major or minor defects shall be performed on a defect
basis in accordance with the classification of defects. Inspection for elastomeric O-rings shall be in
accordance with MIL-STD-413. Four power (4X) magnification may be used in performing visual
examination for such defects as burrs and foreign matter. When compliance is in doubt as a result of visual
inspection, the characteristic shall be measured or gaged to determine acceptability. All nonconforming items
shall be rejected.
4.6.1 Cartridge, Impulse, M37 Assembly, Drawing 8593745.
Characteristic
Defect
Method of Inspection
Critical
1
Any part missing
X-ray/Visual
2
Improper assembly
X-ray/Visual
3
Primer not properly seated
X-ray/Visual
4
Metal defective
Visual
5
Marking missing, incorrect, or illegible
Visual
Major
101
Concentricity of head with body
Gage
102
Crimp missing or improper
Visual
103
Sealant missing
Visual
104
Sealant in cavity
Visual
105
Foreign matter present
Visual
106
O-ring split, creaked, or cut
Visual
Minor
201
Diameter of body, max
Gage
202
Diameter of head, max
Gage
203
Total length, max
Gage
204
Location of datum diameter
Gage
205
Varnish missing or inadequate
Visual
206
Fold, wrinkle or bulge
Visual
4.6.2 Primer, Percussion, Drawing 5184909, covering a detail of 8593745.
Critical
1
Improper assembly
Visual/X-ray
2
Any part missing
Visual/X-ray
3
Primer pellet broken, cracked, or dislodged
Visual
4
Metal defective
Visual
7
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