MIL-DTL-25879G
4.4.1 Sample size. Twelve switches shall be subjected to first article inspection tests specified herein.
4.4.2 Inspection routine. The sample shall be subjected to the inspections specified in table II, in the order shown.
All sample units shall be subjected to the inspections of group I. The sample shall then be divided into two groups of
6 units each. The sample units shall then be subjected only to the inspections indicated for their particular group.
TABLE II. First article inspection.
Examination or test
Requirement
Test
paragraph
paragraph
Group I (all samples)
Visual and mechanical
3.2
4.7.1
Marking
3.6
4.7.1
Workmanship
3.8
4.7.1
Weight
4.7.1
Operating voltage
3.3.1
4.7.2
Operating current
3.3.2
4.7.3
Switching rate
3.3.3
4.7.4
Switching time
3.3.4
4.7.5
VSWR
3.3.5
4.7.6
Insertion loss
3.3.6
4.7.7
Isolation
3.3.7
4.7.8
RF power handling capability
Internal RF contact resistance
Thermal shock
3.4.1
Humidity
3.4.5
Salt atmosphere
3.4.6
Group II (6 samples)
Shock
3.4.3
Random vibration
3.4.4
Connector torque
Immersion
3.4.2
Insulation resistance (RF)
3.3.8
4.7.9
Dielectric withstanding voltage
3.3.9
Group III (6 samples)
Reliability
3.5
4.4.3 Failures. No failures shall be allowed for first article inspection; a failure shall be anything that does not meet
the requirements of the specification.
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