MIL-DTL-3890C
TABLE III. First article inspection.
Examination or test
Requirement
Method
paragraph
paragraph
Group I (all sample units)
Visual and mechanical examination
3.1, 3.3 thru 3.4 incl.
4.5.1
3.13 and 3.14
3.5
Attenuation
4.5.2
VSW R
4.5.3
3.6
Characteristic impedance
4.5.4
3.7
Velocity of propagation
4.5.5
3.8
Group II (two sample units)
RF power handling capability (when specified)
3.9
4.5.6
Dielectric withstanding voltage
3.10
4.5.7
Group III (two sample units)
3.11
4.5.8
Vibration, high frequency
3.12
4.5.9
Pressurization (when specified)
TABLE IV. Group A inspection.
Examination or test
Requirement
Method
paragraph
paragraph
Visual and mechanical examination
3.1, 3.3 thru
4.5.1
3.4 incl
3.13 and 3.14
Attenuation
4.5.2
3.5
VSW R
4.5.3
3.6
Characteristic impedance
4.5.4
3.7
Velocity of propagation
3.8
4.5.5
4.4.1.2.1 Sampling plan. Table IV tests shall be performed on a production lot basis. Samples shall
be selected in accordance with table V. If one or more defects are found, the lot shall be screened for
that particular defect and defects removed. A new sample of parts shall be selected in accordance with
table V and all group A tests again performed. If one or more defects are found in the second sample,
the lot shall be rejected and shall not be supplied to this specification.
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