045538-0128 is a straight plug circular connector socket featuring a shell size 22 with a 22-41 contact arrangement comprising 27 contacts of size 20 and 14 contacts of size 16. The connector utilizes solder cup contacts with copper alloy material plated in gold, housed in an aluminium alloy shell with olive drab chromate over cadmium plating, and sealed with a grommet endbell style. It operates across a temperature range of -55°C to +125°C with an insulator resistance of approximately 5000 MO and supports a test voltage of 1500 Vrms, achieving IP67 water tightness per DIN 40 050. The connector is rated for 7.5 A at AWG20 and 13.0 A at AWG16, with a minimum of 500 mating cycles and vibration resistance of 200 m/s² at 10 to 2000 Hz, making it suitable for military and aerospace applications requiring robust, reliable interconnections.