045531-0003-MS is a circular connector designed for military and battery applications, featuring a straight plug shell style with a grommet seal endbell. It accommodates 3 contacts of size 20 in an 8-3 contact arrangement, with solder cup termination and gold-plated contacts for reliable electrical connection. The connector is constructed from aluminium alloy shell with olive drab chromate over cadmium plating, and polychloroprene insulator material, providing robust environmental protection. Operating across a temperature range of -55°C to +125°C with a contact rating of 7.5 A at AWG20, it meets IP67 ingress protection standards and supports 500 minimum mating cycles, making it suitable for demanding aerospace, military, and industrial battery interconnect applications.