MIL-DTL-28804D
TABLE XII. Group A inspection (connectors).
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
Dielectric withstanding voltage
(at sea level)
3.6.6
4.7.7.1
Insulation resistance
3.6.7
4.7.8
TABLE XIII. Group A inspection (contacts).
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
Contact engagement and separation force
3.6.9
4.7.10
4.6.1.2.1 Sampling plan. Statistical sampling and inspection for the samples submitted for group A inspection shall be on a lot
by lot basis with sample sizes as listed in table XIV. Any occurrence of a failure shall be considered as failure of the lot.
TABLE XIV. Lot and sample size.
Lot size
Sample size
1 to 50
5
51 to 90
7
91 to 150
11
151 to 280
13
281 to 500
16
510 to 1200
19
1201 to 3200
23
3201 to 10000
29
10001 to
35
4.6.1.2.2 Rejected lots. If an inspection lot is rejected, the manufacturer may rework it to correct the defects, or screen out the
defective units, and resubmit for reinspection. Resubmitted lots shall be inspected using tightened inspection (next higher lot size)
and shall not thereafter be tendered for acceptance unless the former rejection or requirement of correction is disclosed. Such lots
shall be separate from new lots and shall be clearly identified as reinspected lots.
4.6.1.2.3 Disposition of sample units. Sample units which have been subjected to group A inspection are available for use.
4.6.2 Periodic inspection. Periodic inspection shall consist of the inspections specified in table IX for connectors and table XI for
contacts. Except where the results of these inspections show noncompliance with the applicable requirements (see 4.6.2.5),
delivery of products which have passed group A inspection shall not be delayed pending the results of these periodic inspections.
4.6.2.1 Sampling plan (connectors). Sample connectors consisting of two mated pairs of each of the size of the types and
termination and each of the sizes of the types containing contacts for which periodic inspection is desired shall be selected every
24 months. Upon passing this inspection two consecutive times, the supplier may select sample connectors every 36 months. If
production of a particular PIN is not current, the periodic inspection tests shall take place at the time production is resumed. The
testing shall revert to the original schedule which is applied to a newly qualified product. If periodic inspection on both classes G
and S is desired, one completely assembled plug and receptacle of each class shall be subjected to the examinations and tests in
lieu of two of a single class.
4.6.2.2 Sampling plan (contacts). The minimum quantity of contacts listed in table X shall be inspected every 24 months. Upon
passing this inspection two consecutive times, the supplier may select sample connectors every 36 months. If production of a
particular PIN is not current, the periodic inspection tests shall take place at the time production is resumed. The testing shall
revert to the original schedule which is applied to a newly qualified product.
4.6.2.3 Failures. If any sample units fail to pass periodic inspection, the entire sample shall be considered to have failed.
4.6.2.4 Disposition of sample units. Sample units which have been subjected to the periodic inspection shall not be delivered on
a contract or purchase order.
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