MIL-DTL-28804D
4.5.2 Qualification of similar classes. Qualification of class E connectors shall also qualify classes G and P.
4.5.2.1 Contacts (crimp-removable only). A minimum quantity of contacts as listed in table X shall be inspected. Half of the
contacts shall be wired with maximum size wire and the remainder shall be wired with minimum size wire as specified in 4.5.1.
The samples shall be subjected to the qualification testing shown in table XI and shall be provided with connectors for those tests
requiring connectors or mating connector assemblies. The connectors provided for this purpose shall be previously qualified
connectors. Suppliers not manufacturing connectors shall make available substantiating certification data that tests were
performed with qualified connectors. The samples shall be produced with equipment and procedures used in production.
TABLE X. Samples for qualification and periodic inspection.
Contacts (minimum)
Qualification
Retention of qualification
Classes G, E, and P
All classes
300
100
TABLE XI. Qualification and periodic inspection (crimp removable contacts only).
Inspection
Requirement paragraph
Method paragraph
Inspection of product
3.1, 3.3, 3.4, 3.7, 3.7.1 and 3.8
4.7.1
Maintenance aging (crimp contact connectors only)
3.6.2
4.7.3
Contact insertion and removal force
3.6.3
4.7.4
Mating and unmating force
3.6.4
4.7.5
Contact resistance
3.6.8
4.7.9
Contact engagement and separation force
3.6.9
4.7.10
Thermal shock
3.6.10
4.7.11
Vibration
3.6.12
4.7.13
Shock (specified pulse)
3.6.13
4.7.14
Durability
3.6.14
4.7.15
Mating and unmating force
3.6.4
4.7.5
Contact engagement and separation force
3.6.9
4.7.10
Oversize pin exclusion
3.6.16
4.7.17
Probe damage
3.6.17
4.7.18
Contact engagement and separation force
3.6.9
4.7.10
Crimp contact deformation
3.6.19
4.7.20
Contact pin strength
3.6.20
4.7.21
Crimp tensile strength
3.6.21
4.7.22
Inspection of product
3.1, 3.3, 3.4, 3.7, 3.7.1 and 3.8
4.7.1
4.5.3 Failures. One or more failures shall be cause for refusal to grant qualification approval.
4.5.4 Verification of qualification. To retain qualification, the contractor shall verify in coordination with the qualifying activity the
capability of manufacturing products which meet the performance requirements of this specification. Refer to the qualifying activity
at any time that the inspection data indicates failure of the qualified product to meet the performance requirements of this
specification.
4.6 Quality conformance inspection.
4.6.1 Inspection of products for delivery. Inspection of product for delivery shall consist of group A inspection.
4.6.1.1 Inspection lot. An inspection lot shall consist of all connectors or removable crimp contacts, as applicable, covered by a
single specification sheet, produced under essentially the same conditions, and offered for inspection at one time.
4.6.1.2 Group A inspection. Group A inspection shall consist of the inspections specified in table XII for connectors and
table XIII for contacts, in the order shown.
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