Knowledge Base - FAQ

Plug vs Receptacle Pin vs Socket

Monday, June 26, 2023
Submitted by ryan.grace on June 26, 2023 - 9:34am
In FIT tip inspections what is the difference between plug, receptacle, pin and socket?
Plug/receptacle refers to the outer geometry of the connector body. Pin/socket is the inner geometry. In a socket, the termini are recessed in a mating sleeve. On the pin side, the termini "stick out." Not all plugs are the pin side, and not all receptacles are the socket side. The mating sleeve is movable in some cases (particularly ARINC).

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