MIL-DTL-83413C
3.4.2 Grounding plug. The configuration of the grounding plug shall be as specified herein and on the
individual specification sheets. Material shall be as specified on the individual specification sheets.
3.4.2.1 Threads. Threads shall be in accordance with FED-STD-H28.
3.4.2.2 Surface texture. Surface texture of the grounding plug shall be in accordance with
ANSI B46.1.
3.4.2.3 Grips. The incorporation of grips on grounding plugs shall be considered optional. When grips
are used, they shall not interfere with the insertion or general operation of the grounding plug.
3.4.2.4 Caps. Caps shall be included with the grounding plugs on applicable specification sheets.
3.4.3 Connecting cables and jumper cable assemblies. The construction of connecting cables and
jumper cable assemblies shall be as specified herein and on the individual specification sheets.
Connecting cables shall be tested only when inserted into a grounding assembly. Jumper cable
assemblies shall be tested as a separate part.
3.4.3.1 Wire. Grounding wire shall be as specified on the individual specification sheets.
3.4.3.2 Terminal lugs. Unless otherwise specified, copper terminal lugs shall be in accordance with
SAE-AS7928 (see 3.1).
3.4.3.3 Tools. Tools used for construction of cable assemblies shall be as specified on the individual
specification sheets.
3.4.4 Grounding receptacles. Grounding receptacles shall either be a one-piece or a two-piece unit.
Two-piece receptacles shall be composed of a grounding insert and a receptacle housing. All grounding
receptacles shall be as specified herein and on the individual specification sheets.
When tested, the grounding receptacle shall be fully assembled. All receptacles shall be capable of
mating with all plugs under this specification, and the plugs specified by, ISO 46, and NATO STANAG
3632.
3.4.4.1 Grounding inserts. All grounding inserts shall be capable of mating with the receptacle housing
of 3.4.4.2. In addition, all inserts shall have external threads per FED-STD-H28 which are compatible with
the internal threads of the receptacle housing.
3.4.4.2 Receptacle housing. All receptacle housings shall be capable of mating with the grounding
inserts of 3.4.4.1. The receptacle housing shall have internal threads per FED-STD-H28 which are
compatible with the external threads of the grounding inserts. Unless otherwise specified, O-rings shall be
supplied with each housing (see 3.1).
3.4.4.2.1 Jam-nut mounting. Unless otherwise specified, jam-nut mounting shall be provided on the
mounting threads of the housing, such that the drain-holes are vertically oriented, if provided.
3.5 Performance. The connectors shall meet the performance requirements specified herein.
3.5.1 Detent action. When tested as specified in 4.7.2, pre-durability test, insertion force shall not
exceed 28lbs and withdrawal force shall not be less than 6lbs. Detent action shall be present and shall
have sufficient force to suspend a 6lb dead weight attached to the plug, and provide contact resistance
not exceeding the value specified, when tested as specified in 4.7.7.1. Post durability test, insertion force
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