MS3102R24-12P is a MIL-C-5015 circular box mounting receptacle designed for use in junction boxes or as an integral part of equipment. It features shell size 24 with contact arrangement 12 and pin contacts, utilizing a resilient insulator and wire sealing grommets for extreme environmental conditions and high altitude sealing. The connector has a shorter, lighter weight endbell without cable clamp (R class) and uses a 1-1/2-18UNEF-2A coupling thread. This receptacle mates with 3106, 3107, and 3108 plugs, making it suitable for commercial and industrial applications requiring low cost and high reliability in demanding environments.