MIL-DTL-38999 III (D38999) harsh environment connectors feature wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs in 9 shell sizes and 54 insert arrangements. Utilizing M39029 contacts, they accommodate sizes 22D, 20, 16, 12, 10 power, and 8 twinax. Available in aluminum, stainless steel, and lightweight composite shells with various plating options including olive drab cadmium and nickel, they meet RoHS compliance and Boeing BACC approval. The D38999/20JD35SN is a wall-mounting flange receptacle with 37 removable crimp contacts, gold-plated for superior conductivity. With a wide operating temperature range from -65°C to 175°C, they offer reliable performance in military and aerospace applications, with a service rating of M and 500 mating cycles. The composite shell construction and cadmium olive drab finish provide environmental resistance and durability, making them ideal for high-reliability systems.
