MS27656T23B55S is a high-performance MIL-DTL-38999 Series I connector featuring a back panel wall mounting receptacle with a durable aluminum shell construction. With a total of 55 gold-plated removable crimp socket contacts, this connector ensures reliable conductivity in harsh environments, rated for operating temperatures ranging from -65°C to 175°C. Its bayonet mating type offers secure and efficient connections, with a service rating of I for enhanced performance. The Electroless Nickel and Cadmium Olive Drab finish coatings provide added protection against environmental factors, making it ideal for use in military and industrial applications requiring a rugged and reliable circular connector solution.