MIL-DTL-83538 Connectors And Accessories, Electrical, Circular, Umbilical, Environment Resistant, Removable Crimp Contacts For Mil-Std-1760 Applications \(Metric\), General Specification ForThis specification covers connectors and accessories, electrical, circular, umbilical. The connector assembly provides the necessary connections required to meet MIL-STD-1760, class I electrical interface between stores and their associated launchers using a "blind mating" mechanism. The connector assembly consists of a receptacle installed on the launcher, a receptacle installed on the store, and a buffer plug installed between the two receptacles. This specification also includes the required mounting adapters and nut, accessory adapter, cable bushing, and protective covers \(see 6.1 for details on intended use and application\). The connectors covered by this specification are intended for use with launcher mechanisms with an applied holding force in the range 271 Newtons \(61 lbs\) to 427 Newton \(96 lbs\).

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MIL-DTL-83538D

4.5 Conformance inspections.

4.5.1 Group A inspection. Group A inspection shall consist of the visual and mechanical inspections

specified in table VII. The documentation requirements of EIA-364 do not apply.

TABLE VII. Group A inspection. 1/

Inspection

Requirement paragraph

Test paragraph

Visual and mechanical examination 2/

Critical examination 2/ 3/

Insulation resistance at ambient temperature 2/ 3/ 4/

Dielectric withstanding voltage at sea level 2/ 3/ 4/

Electrical resistance 2/

1/ Contacts shipped with connectors shall be from lots that have met the requirements as

specified in SAE-AS39029.

2/ 100 percent inspection.

3/ The contractor may use in-process controls for this requirement.

4/ Test between adjacent contacts and between two peripheral contacts and the shell.

4.5.1.1 Visual examination. Group A inspection. Each connector and accessory shall be visually

examined for completeness, workmanship, and identification requirements. Attention shall be given to

those assemblies that require a gasket to determine the condition of the gasket. Gaskets missing,

twisted, buckled, kinked, or damaged in any way shall be cause for rejection. Each connector shall be

visually inspected for the presence of compound between wire termination end of insert and shell.

4.5.1.1.1 Critical examinations. Group A inspection. The following dimensions and features shown on

the pertinent military standard are considered critical.

a. Mating diameters (see 3.1) (maximum on plugs, minimum on receptacles).

b. Key or keyway positions.

c. Registration of grommet and insert markings (hole pattern between the grommet and the front face

of the insert).

4.5.1.2 Group B inspection. Group B inspection shall consist of the inspections specified in table VIII in

the order shown and shall be made on sample units which have been subjected to and have passed the

group A inspection. For group B inspection, the documentation and standard test conditions of

EIA-364 do not apply.

4.5.1.2.1 Sampling plan (group B inspection). A sample size shall be randomly selected as specified in

table IX. If one or more defects are found the lot shall be rescreened and defects removed. A new

sample as specified in table IX shall then be randomly selected. If one or more defects are found in the

second sample the lot shall be rejected and shall not be supplied to this specification.