MIL-PRF-32517
TABLE X. Group B inspections.1/
Requirement
Test method
paragraph
paragraph
Examination or test
3.4.1
4.6.1
Characteristic impedance
3.4.2
4.6.2
Insertion loss
3.4.3
4.6.3
Return loss
3.4.9
4.6.6.1
Altitude immersion (1 cycle)
3.4.5
4.6.7
Insulation resistance
3.4.6
4.6.8.2
Dielectric withstanding voltage (wet)
3.4.4
4.6.4
Voltage drop
1/ A manufacturer's normal control tests and production tests may be used to fulfill all or part of
Group B inspection; however, all of the Group B inspections shall be completed as specified.
4.4.3.1 Sampling plan. Six months after the date of notification of qualification, and
after each subsequent 6 month period, fifteen splices shall be selected.
4.4.3.2 Failures. If one or more matched impedance splices fail to pass Group B
inspection, the sample shall be considered to have failed. The supplier shall take corrective
action on the materials or process, or both, as warranted and on all splices that are considered
subject to the same failure. Acceptance of the product shall be discontinued until corrective
action has been taken. After the corrective action has been taken, Group B and/or Group A (see
table VIII) inspection, as applicable, shall be repeated on additional splices. Final acceptance
shall be withheld until Group B re-inspection, as applicable, has shown that the corrective action
was successful. The corrective action shall be submitted to the qualifying activity as part of the
retention of qualification (see 4.3.3).
4.4.3.3 Disposition of samples. Samples that have been subjected to Group B inspection
shall not be delivered on the contract or order.
4.5 Examinations.
4.5.1 Visual and dimensional examination. Matched impedance splices shall be
examined to verify that the materials, design, construction, and physical dimensions are in
accordance with this specification (see table VI). Classification of defects for visual and
dimensional examination shall be as specified in table XI. No major or minor or defects are
permitted for qualification testing.
a. Dimensions shall be measured with calibrated micrometers using standard laboratory
methodology.
b. Sleeve thickness (when specified): The sleeving shall be split lengthwise into two hemi
cylindrical pieces. A smooth gage rod shall be selected, measured and placed in contact with the
inside surface of the sleeving. The total thickness of the gage rod plus sleeving wall shall then be
measured. The maximum and minimum wall thickness shall be calculated by subtracting the
gage rod measurement from the measurement of the gage rod plus sleeving wall.
c. Identification of product: Visually examine for color coding.
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