MIL-DTL-83413C
shall not exceed 18lbs and withdrawal force shall not be less than 2lbs, and provide contact resistance
not exceeding the value specified, when tested as specified in 4.7.7.1.
3.5.2 Hand-grip force. When tested as specified in 4.7.3, the hand-grip force required to open the
grounding clamp connector shall not exceed 70 pounds (311.4 newtons).
3.5.3 Side loading. When tested as specified in 4.7.4, the connector shall withstand a force of 20
pounds (88.9 newtons) in any direction perpendicular to the axis of insertion, without distortion or other
visible damage.
3.5.4 Torque. When tested as specified in 4.7.5, there shall be no stripping of the coupling threads.
3.5.5 Engagement (plugs and receptacles). When tested as specified in 4.7.6, there shall be no free
rotation about or free movement along the connector insertion axis by the grounding plug or test plug.
3.5.6 Resistance. Resistance values shall be specified on the individual specification sheets
(see 4.7.7).
3.5.6.1 Contact resistance. When tested as specified in 4.7.7.1, the resistance of the mated connectors
shall not exceed the value specified.
3.5.6.2 Clamp connector resistance. When tested as specified in 4.7.7.2, the clamp connector
resistance shall not exceed the value specified.
3.5.6.3 Assembly resistance. When tested as specified in 4.7.7.3, the resistance of the assembly shall
not exceed the value specified.
3.5.7 Cable attachment. When tested as specified in 4.7.8, the cable shall remain attached to the clamp
connector for 5 seconds under 50 pounds (222.4 newtons) of axial cable force without breaking,
becoming loose, or distorting the connector such that it will not meet the requirements specified herein.
3.5.8 Clamp release force. When tested as specified in 4.7.9, the force required to release the
grounding clamp connector from the rod shall meet the requirements specified herein.
3.5.8.1 Clamp release force initial. The grounding clamp connector shall meet the initial clamp release
3.5.8.2 Post clamping life test. When tested as specified in 4.7.10, the grounding clamp connector shall
meet the post clamping life test requirements in table I.
TABLE I. Clamp release force.
Rod diameter (nominal)
Clamp release force Initial,
Clamp release force post camping life
inches (mm)
pounds-minimum (newtons)
test, pounds-minimum (newtons)
.375 (9.53)
20 (88.9)
17.0 (75.6)
.500 (12.70)
30 (133.5)
25.5 (113.4)
.625 (15.88)
40 (177.9)
34.0 (151.2)
.750 (19.05)
50 (222.4)
42.5 (189.0)
3.5.9 Clamping life. When tested as specified in 4.7.10, the clamp connector shall meet the clamp
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