MIL-DTL-21097G
TABLE XII. Group B inspection - Continued.
Inspection
Requirement
Method
paragraph
paragraph
Group I - continued
Resistance to soldering heat
Resistance to solvents
Group II (2 samples)
Visual and mechanical inspection
Insulation resistance
Dielectric withstanding voltage
Contact resistance
Board insertion force (overstress)
Durability (boardside) 4/
Bond strength, body assembly
Group III (2 samples)
Visual and mechanical inspection
Contact resistance
Durability (boardside) 4/
Bond strength (board assembly)
1/ Applicable only to types A and AD.
2/ Type CR, as applicable
3/ Applicable only to crimp and solder type CR contacts with wire sizes 22 and larger.
4/ Applicable only to types A, AD and CR.
TABLE XIII. Group B inspection for crimp contacts.
Inspection
Requirement
Method
Number of
paragraph
paragraph
sample units
to be inspected
Group I
Visual and mechanical inspection 1/
Contact resistance
50
Salt spray (corrosion)
Crimp resistance
Crimp tensile strength 2/
1/ Dimensional measurements are required on 8 contacts only.
2/ Type CR.
4.5.2.1.1.1 Contacts. Fifty crimp contacts shall be crimped to the appropriate wire size and submitted to the tests
specified in table XIII. Where a contact covers a range of wire sizes, one-half of the contacts of each group shall be
crimped to the largest size in the range and one-half of each group shall be crimped to the smallest wire size in the range.
4.5.2.1.2 Failures. If one or more sample units fail to pass group B inspection, the sample shall be considered to have
failed.
4.5.2.1.3 Disposition of sample units. Sample units which have been subjected to group B inspection shall not be
delivered on the contract or order.
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