MS27656T21B35PC is a high-performance MIL-DTL-38999 Series I circular connector designed for rugged applications in harsh environments. Featuring a back panel wall mounting receptacle with a wall mounting flange, this connector ensures secure and reliable electrical connections. With 79 gold-plated removable crimp contacts (size 22D), it offers excellent conductivity and durability, rated for up to 500 mating cycles. The aluminum shell with electroless nickel and cadmium olive drab finish provides enhanced protection against corrosion and environmental elements. Operating within a wide temperature range of -65°C to 175°C, this connector is suitable for military and industrial applications requiring reliable performance in demanding conditions. RoHS non-compliant.