The Molex 0732250081 is a 2.2/5 series plug with a male pin, designed for RG-402 (.141" semi-rigid) coaxial cable. It's a single-port, free-hanging (in-line) connector with threaded fastening — the standard interface for panel-mount or bulkhead feed-through applications where the cable is fixed in place and the nut secures the mate. The 50 Ohm impedance and 6 GHz max frequency tell you this is built for RF signal paths up into the low microwave band, not for DC power or low-frequency control lines.
This connector is specifically specced for RG-402 (.141" semi-rigid) coax — the cable group entry is the fit check. If your assembly uses RG-402, this plug is the correct mate. That means a clean soldering station and a steady hand are required — no crimp tool needed. The dielectric is PTFE, which holds up through the soldering heat without melting or shifting the impedance.
Materials and finish
The body is brass with a tri-metal finish (typically nickel underplate plus a final layer — common for RF connectors that need corrosion resistance without degrading conductivity). The center contact is also brass, plated with silver — silver gives better surface conductivity than tin at RF frequencies, which matters for keeping insertion loss low up to 6 GHz. Housing colour is silver, consistent with the tri-metal body finish.