MIL-DTL-49055F
4.5.1.2.1 Subgroup 1. Unless otherwise specified (see 6.2), subgroup 1 inspection shall consist of the
tests specified in table VII. These tests shall be performed on a production lot basis. The inspection
sample shall be product selected at random from the production lot without regard to quality and shall be
of the size specified in table VI. Repetitive dimensions (such as conductor spacing) shall be checked on
a random 5 percent minimum but not less than 2 spaces per specimen. Subgroup 1 inspections may be
performed in any order. If one or more defects are found in the inspection sample, then the production lot
shall be inspected for that particular defect and defects removed. A second inspection sample shall be
selected from the production lot and all sampling tests again performed. If one or more defective items
are found in the second inspection sample, the production lot shall be rejected and shall not be supplied
to this specification.
TABLE VII. Group A inspection.
Inspection
Requirement paragraph
Verification paragraph
Subgroup 1
--
--
Visual and mechanical inspection, cable
dimensions, and construction
Marking
3.19
Workmanship
3.22
Subgroup 2
--
--
Insulation flaws
Conductor continuity
Subgroup 3
--
--
Conductor size
Cable color
Dielectric withstanding voltage
Insulation resistance
Durability of identification
4.5.1.2.2 Subgroup 2. For subgroup 2, the sample shall be 100 percent of the cable in the inspection
lot and every length of cable shall be subjected to the inspection. Any portion of the cable exhibiting
breakdown or nonconformity when subjected to the insulation flaws inspection shall be cut out and
removed.
4.5.1.2.3 Subgroup 3. For subgroup 3, the sample shall be one length per lot. No defects shall be
allowed under this subgroup.
4.5.1.2.4 Disposition of unit of product. Units of product which have passed all the group A inspection
may be delivered on the contract or order if the lot is accepted.
4.5.2 Periodic inspection. Periodic inspection shall consist of group B inspection. The delivery of
products which have passed group A inspection shall not be delayed pending results of group B
inspection but shall be discontinued immediately upon determination of noncompliance of the product
with any group B requirement. If there has been limited production of a specific product for a period of
two years, the qualifying activity has the option of requiring the manufacturer to perform periodic control
tests. If there has been no production for a specific product for a period of two years, the qualifying
activity has the option of requiring the manufacturer to perform periodic control tests prior to the next
shipment of product.
4.5.2.1 Group B inspection. Group B inspection shall consist of the inspections specified in table VIII.
Group B inspection shall be made on sample units selected from inspection lots that have passed the
group A inspection. Two test lengths shall be subjected to each test.
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