MS27499E20B41PA is a high-performance MIL-DTL-38999 Series II connector featuring a rugged aluminum shell construction, designed for harsh environmental conditions. With 41 gold-plated removable crimp contacts, this box mounting flange receptacle ensures reliable conductivity in demanding applications. Its bayonet mating type and electroless nickel/cadmium olive drab finish coating offer enhanced durability, while its wide operating temperature range of -65°C to 175°C guarantees suitability for extreme environments. Engineered for military and aerospace use, this connector is RoHS compliant and rated for 500 mating cycles, making it ideal for mission-critical systems requiring secure and efficient electrical connections.