MS27656T21F35PA is a rugged MIL-DTL-38999 Series I connector designed for harsh environments, featuring a wall-mounting back panel receptacle with a crimp-type connection and bayonet coupling. With 79 gold-plated removable crimp contacts (size 22D), this connector ensures reliable conductivity in extreme conditions, rated for temperatures ranging from -65°C to 200°C. Its aluminum shell with electroless nickel coating offers superior durability and environmental resistance, making it ideal for military and aerospace applications. This high-reliability connector, meeting MIL-DTL-38999 I specifications, is RoHS compliant and guarantees 500 mating cycles, suitable for critical systems in demanding operating environments.