The CIR030RVFP-32-22P-F80-VO from ITT CANNON is rear panel (square flange with non threaded through mounting hole) mount circular connector (contacts not supplied), receptacle with male pins, 54 position, shell size-insert 32-22, bayonet lock, backshell (includes wire sealing grommet and compression ring) and crimp contacts. This connector has copper alloy contacts with silver finish, chloroprene rubber insulator and aluminum alloy shell with chromate over cadmium, olive drab plating. Operating temperature range is from -55°C to 125°C.