MIL-DTL-38999 Series I connectors, designated as MS27656, are high-performance electrical receptacles designed for back panel installation with a wall mounting flange. These rugged connectors feature a bayonet coupling mechanism for secure mating, meeting stringent military specification MIL-DTL-38999 I for reliable performance in harsh environments. With a total of 100 removable crimp contacts (size 22D) included, these connectors offer robust connectivity in aerospace and defense applications. Constructed with a durable aluminum shell and available in various finishes including electroless nickel and cadmium olive drab, the MS27656 connectors ensure excellent environmental resistance with a wide operating temperature range of -65°C to 175°C. Perfect for demanding missions, these high-reliability connectors, with a service rating of M, provide essential functionality in critical systems. (Note: This is a generated description based on the provided attributes of the product)