The TE Connectivity 202173-7 is a corner guide pin for the M Series connector family, designed to align and polarize large multi-pin connectors during mating. It carries a 6-32 UNC thread and is intended for use with connectors having 104CF position counts — the CF suffix indicates the contact arrangement within the shell. This is a hardware accessory, not a contact or housing; it mounts to the connector flange to guide the mating pair into correct orientation and prevent pin damage from off-angle insertion.
The 202173-7 is listed for use with M Series connectors. The M Series is a TE Connectivity family of rectangular industrial connectors with multiple shell sizes and contact arrangements. The 104CF position count refers to the number of contacts in the fully populated connector — this guide pin is sized for the largest shell in the series. It mounts at the corner of the connector flange, one per corner typically, though a design may use fewer depending on the application.