The DMC-MD82A01-A1188 is a 4-module stackable receptacle connector manufactured by TE Connectivity/Deutsch, conforming to EN 4165 aerospace military connector standards. The connector features an aluminum alloy shell with black nickel plating (standard), thermoplastic and fluoronated silicone modules, and copper alloy contacts with gold-on-nickel protection. It incorporates interfacial seals via individual chimneys, silicone rear grommet sealing, and RFI fingers on the plug side for shell-to-shell continuity. The connector operates across a temperature range of -55°C to +175°C with a durability rating of 500 mating cycles and supports male or female module configurations with multiple polarization options (A, B, C, D, or standard N). This connector is ideal for aerospace, military, and high-reliability applications requiring robust electromagnetic shielding and environmental sealing in demanding operational environments.